15245155631145 has 48 divisors (see below), whose sum is σ = 26923497027840. Its totient is φ = 7360663242240.

The previous prime is 15245155631071. The next prime is 15245155631149. The reversal of 15245155631145 is 54113655154251.

It is not a de Polignac number, because 15245155631145 - 2¹⁰ = 15245155630121 is a prime.

It is a super-2 number, since 2×15245155631145² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15245155631094 and 15245155631103.

It is not an unprimeable number, because it can be changed into a prime (15245155631149) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17138464 + ... + 18006033.

It is an arithmetic number, because the mean of its divisors is an integer number (560906188080).

Almost surely, 2^{15245155631145} is an apocalyptic number.

15245155631145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15245155631145 is a deficient number, since it is larger than the sum of its proper divisors (11678341396695).

15245155631145 is a wasteful number, since it uses less digits than its factorization.

15245155631145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35144766 (or 35144755 counting only the distinct ones).

The product of its digits is 1800000, while the sum is 48.

The spelling of 15245155631145 in words is "fifteen trillion, two hundred forty-five billion, one hundred fifty-five million, six hundred thirty-one thousand, one hundred forty-five".