15305573142 has 48 divisors (see below), whose sum is σ = 34061161680. Its totient is φ = 4964198400.

The previous prime is 15305573141. The next prime is 15305573159. The reversal of 15305573142 is 24137550351.

15305573142 is a `hidden beast` number, since 1 + 5 + 30 + 557 + 31 + 42 = 666.

It is a super-2 number, since 2×15305573142² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15305573097 and 15305573106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15305573141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 252342 + ... + 307062.

It is an arithmetic number, because the mean of its divisors is an integer number (709607535).

Almost surely, 2^15305573142 is an apocalyptic number.

15305573142 is an abundant number, since it is smaller than the sum of its proper divisors (18755588538).

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

15305573142 is a wasteful number, since it uses less digits than its factorization.

15305573142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55149 (or 55146 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The spelling of 15305573142 in words is "fifteen billion, three hundred five million, five hundred seventy-three thousand, one hundred forty-two".