1957570145 has 16 divisors (see below), whose sum is σ = 2529429120. Its totient is φ = 1448949504.

The previous prime is 1957570129. The next prime is 1957570193. The reversal of 1957570145 is 5410757591.

It is a cyclic number.

It is not a de Polignac number, because 1957570145 - 2⁴ = 1957570129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1957570096 and 1957570105.

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, 190157 + ... + 200186.

It is an arithmetic number, because the mean of its divisors is an integer number (158089320).

Almost surely, 2^1957570145 is an apocalyptic number.

It is an amenable number.

1957570145 is a deficient number, since it is larger than the sum of its proper divisors (571858975).

1957570145 is a wasteful number, since it uses less digits than its factorization.

1957570145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390424.

The product of its (nonzero) digits is 220500, while the sum is 44.

The square root of 1957570145 is about 44244.4363168975. The cubic root of 1957570145 is about 1250.9475790936.

The spelling of 1957570145 in words is "one billion, nine hundred fifty-seven million, five hundred seventy thousand, one hundred forty-five".