15135100040 has 16 divisors (see below), whose sum is σ = 34053975180. Its totient is φ = 6054040000.

The previous prime is 15135100037. The next prime is 15135100111. The reversal of 15135100040 is 4000153151.

It can be written as a sum of positive squares in 2 ways, for example, as 13709131396 + 1425968644 = 117086^2 + 37762^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 15135099985 and 15135100021.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189188711 + ... + 189188790.

Almost surely, 2^15135100040 is an apocalyptic number.

15135100040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15135100040 is an abundant number, since it is smaller than the sum of its proper divisors (18918875140).

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

15135100040 is a wasteful number, since it uses less digits than its factorization.

15135100040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378377512 (or 378377508 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 15135100040 its reverse (4000153151), we get a palindrome (19135253191).

The spelling of 15135100040 in words is "fifteen billion, one hundred thirty-five million, one hundred thousand, forty".