34091257 has 4 divisors (see below), whose sum is σ = 34192756. Its totient is φ = 33989760.

The previous prime is 34091209. The next prime is 34091261. The reversal of 34091257 is 75219043.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21566736 + 12524521 = 4644^2 + 3539^2 .

It is a cyclic number.

It is not a de Polignac number, because 34091257 - 2¹⁹ = 33566969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34091297) 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, 50244 + ... + 50917.

It is an arithmetic number, because the mean of its divisors is an integer number (8548189).

Almost surely, 2^34091257 is an apocalyptic number.

It is an amenable number.

34091257 is a deficient number, since it is larger than the sum of its proper divisors (101499).

34091257 is a wasteful number, since it uses less digits than its factorization.

34091257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101498.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 34091257 is about 5838.7718742900. The cubic root of 34091257 is about 324.2507616455.

The spelling of 34091257 in words is "thirty-four million, ninety-one thousand, two hundred fifty-seven".