245142537 has 4 divisors (see below), whose sum is σ = 326856720. Its totient is φ = 163428356.

The previous prime is 245142529. The next prime is 245142551. The reversal of 245142537 is 735241542.

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 245142537 - 2³ = 245142529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245142498 and 245142507.

It is not an unprimeable number, because it can be changed into a prime (245142577) 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, 40857087 + ... + 40857092.

It is an arithmetic number, because the mean of its divisors is an integer number (81714180).

Almost surely, 2^245142537 is an apocalyptic number.

It is an amenable number.

245142537 is a deficient number, since it is larger than the sum of its proper divisors (81714183).

245142537 is an equidigital number, since it uses as much as digits as its factorization.

245142537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81714182.

The product of its digits is 33600, while the sum is 33.

The square root of 245142537 is about 15657.0283578973. The cubic root of 245142537 is about 625.8537980219.

The spelling of 245142537 in words is "two hundred forty-five million, one hundred forty-two thousand, five hundred thirty-seven".