15205630137 has 16 divisors (see below), whose sum is σ = 21497021760. Its totient is φ = 9533452032.

The previous prime is 15205630133. The next prime is 15205630177. The reversal of 15205630137 is 73103650251.

It is not a de Polignac number, because 15205630137 - 2² = 15205630133 is a prime.

It is a super-2 number, since 2×15205630137² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15205630098 and 15205630107.

It is not an unprimeable number, because it can be changed into a prime (15205630133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 965788 + ... + 981405.

It is an arithmetic number, because the mean of its divisors is an integer number (1343563860).

Almost surely, 2^15205630137 is an apocalyptic number.

It is an amenable number.

15205630137 is a deficient number, since it is larger than the sum of its proper divisors (6291391623).

15205630137 is a wasteful number, since it uses less digits than its factorization.

15205630137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947352.

The product of its (nonzero) digits is 18900, while the sum is 33.

The spelling of 15205630137 in words is "fifteen billion, two hundred five million, six hundred thirty thousand, one hundred thirty-seven".