1400015136 has 192 divisors, whose sum is σ = 4145541120. Its totient is φ = 410726400.

The previous prime is 1400015131. The next prime is 1400015147. The reversal of 1400015136 is 6315100041.

It is not an unprimeable number, because it can be changed into a prime (1400015131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3655201 + ... + 3655583.

It is an arithmetic number, because the mean of its divisors is an integer number (21591360).

Almost surely, 2^1400015136 is an apocalyptic number.

1400015136 is a gapful number since it is divisible by the number (16) 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 1400015136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2072770560).

1400015136 is an abundant number, since it is smaller than the sum of its proper divisors (2745525984).

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

1400015136 is a wasteful number, since it uses less digits than its factorization.

1400015136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539 (or 531 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1400015136 is about 37416.7761305006. The cubic root of 1400015136 is about 1118.6929736087.

Adding to 1400015136 its reverse (6315100041), we get a palindrome (7715115177).

The spelling of 1400015136 in words is "one billion, four hundred million, fifteen thousand, one hundred thirty-six".