245040513 has 8 divisors (see below), whose sum is σ = 326796000. Its totient is φ = 163322688.

The previous prime is 245040493. The next prime is 245040547. The reversal of 245040513 is 315040542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 245040513 - 2⁶ = 245040449 is a prime.

It is a super-2 number, since 2×245040513² = 120089706022606338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (245040553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14313 + ... + 26361.

It is an arithmetic number, because the mean of its divisors is an integer number (40849500).

Almost surely, 2^245040513 is an apocalyptic number.

It is an amenable number.

245040513 is a deficient number, since it is larger than the sum of its proper divisors (81755487).

245040513 is a wasteful number, since it uses less digits than its factorization.

245040513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18831.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 245040513 is about 15653.7699293173. The cubic root of 245040513 is about 625.7669628704.

The spelling of 245040513 in words is "two hundred forty-five million, forty thousand, five hundred thirteen".