345025757 has 4 divisors (see below), whose sum is σ = 345344256. Its totient is φ = 344707260.

The previous prime is 345025739. The next prime is 345025801. The reversal of 345025757 is 757520543.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 757520543 = 13 ⋅58270811.

It is a cyclic number.

It is not a de Polignac number, because 345025757 - 2⁸ = 345025501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 345025757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345025957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157619 + ... + 159792.

It is an arithmetic number, because the mean of its divisors is an integer number (86336064).

Almost surely, 2^345025757 is an apocalyptic number.

It is an amenable number.

345025757 is a deficient number, since it is larger than the sum of its proper divisors (318499).

345025757 is a wasteful number, since it uses less digits than its factorization.

345025757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318498.

The product of its (nonzero) digits is 147000, while the sum is 38.

The square root of 345025757 is about 18574.8689631986. The cubic root of 345025757 is about 701.3753619018.

The spelling of 345025757 in words is "three hundred forty-five million, twenty-five thousand, seven hundred fifty-seven".