357140645 has 4 divisors (see below), whose sum is σ = 428568780. Its totient is φ = 285712512.

The previous prime is 357140599. The next prime is 357140657. The reversal of 357140645 is 546041753.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 546041753 = 733 ⋅744941.

It can be written as a sum of positive squares in 2 ways, for example, as 130005604 + 227135041 = 11402^2 + 15071^2 .

It is a cyclic number.

It is not a de Polignac number, because 357140645 - 2²⁸ = 88705189 is a prime.

It is a super-2 number, since 2×357140645² = 255098880622032050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35714060 + ... + 35714069.

It is an arithmetic number, because the mean of its divisors is an integer number (107142195).

Almost surely, 2^357140645 is an apocalyptic number.

It is an amenable number.

357140645 is a deficient number, since it is larger than the sum of its proper divisors (71428135).

357140645 is an equidigital number, since it uses as much as digits as its factorization.

357140645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71428134.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 357140645 is about 18898.1651225721. The cubic root of 357140645 is about 709.4902411183.

The spelling of 357140645 in words is "three hundred fifty-seven million, one hundred forty thousand, six hundred forty-five".