1245500015400 has 240 divisors, whose sum is σ = 4333521297600. Its totient is φ = 331540974720.

The previous prime is 1245500015359. The next prime is 1245500015471. The reversal of 1245500015400 is 45100055421.

1245500015400 is a `hidden beast` number, since 1 + 2 + 4 + 5 + 500 + 0 + 154 + 0 + 0 = 666.

It is a super-2 number, since 2×1245500015400² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 9052321 + ... + 9188879.

It is an arithmetic number, because the mean of its divisors is an integer number (18056338740).

Almost surely, 2^{1245500015400} is an apocalyptic number.

1245500015400 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 1245500015400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2166760648800).

1245500015400 is an abundant number, since it is smaller than the sum of its proper divisors (3088021282200).

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

1245500015400 is a wasteful number, since it uses less digits than its factorization.

1245500015400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137150 (or 137132 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The spelling of 1245500015400 in words is "one trillion, two hundred forty-five billion, five hundred million, fifteen thousand, four hundred".