145657273458 has 32 divisors (see below), whose sum is σ = 304285737600. Its totient is φ = 46423069056.

The previous prime is 145657273397. The next prime is 145657273469. The reversal of 145657273458 is 854372756541.

It is a happy number.

It is a super-2 number, since 2×145657273458² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 145657273398 and 145657273407.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4045723 + ... + 4081566.

It is an arithmetic number, because the mean of its divisors is an integer number (9508929300).

Almost surely, 2^145657273458 is an apocalyptic number.

145657273458 is an abundant number, since it is smaller than the sum of its proper divisors (158628464142).

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

145657273458 is a wasteful number, since it uses less digits than its factorization.

145657273458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8127426.

The product of its digits is 28224000, while the sum is 57.

The spelling of 145657273458 in words is "one hundred forty-five billion, six hundred fifty-seven million, two hundred seventy-three thousand, four hundred fifty-eight".