1512013140 has 144 divisors (see below), whose sum is σ = 5138864640. Its totient is φ = 356624640.

The previous prime is 1512013121. The next prime is 1512013159. The reversal of 1512013140 is 413102151.

1512013140 is a `hidden beast` number, since 1 + 512 + 0 + 13 + 140 = 666.

It is an interprime number because it is at equal distance from previous prime (1512013121) and next prime (1512013159).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 62941 + ... + 83579.

It is an arithmetic number, because the mean of its divisors is an integer number (35686560).

Almost surely, 2^1512013140 is an apocalyptic number.

1512013140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1512013140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2569432320).

1512013140 is an abundant number, since it is smaller than the sum of its proper divisors (3626851500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1512013140 is a wasteful number, since it uses less digits than its factorization.

1512013140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20702 (or 20697 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1512013140 is about 38884.6131522483. The cubic root of 1512013140 is about 1147.7620345104.

Adding to 1512013140 its reverse (413102151), we get a palindrome (1925115291).

The spelling of 1512013140 in words is "one billion, five hundred twelve million, thirteen thousand, one hundred forty".