245262457 has 4 divisors (see below), whose sum is σ = 267559056. Its totient is φ = 222965860.

The previous prime is 245262449. The next prime is 245262461. The reversal of 245262457 is 754262542.

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.

It is a cyclic number.

It is not a de Polignac number, because 245262457 - 2³ = 245262449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245262257) 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, 11148283 + ... + 11148304.

It is an arithmetic number, because the mean of its divisors is an integer number (66889764).

Almost surely, 2^245262457 is an apocalyptic number.

It is an amenable number.

245262457 is a deficient number, since it is larger than the sum of its proper divisors (22296599).

245262457 is a wasteful number, since it uses less digits than its factorization.

245262457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22296598.

The product of its digits is 134400, while the sum is 37.

The square root of 245262457 is about 15660.8574797167. The cubic root of 245262457 is about 625.9558341047.

The spelling of 245262457 in words is "two hundred forty-five million, two hundred sixty-two thousand, four hundred fifty-seven".