501245137 has 4 divisors (see below), whose sum is σ = 527626480. Its totient is φ = 474863796.

The previous prime is 501245117. The next prime is 501245149. The reversal of 501245137 is 731542105.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-501245137 is a prime.

It is a super-2 number, since 2×501245137² = 502493374732297538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501245117) 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, 13190643 + ... + 13190680.

It is an arithmetic number, because the mean of its divisors is an integer number (131906620).

Almost surely, 2^501245137 is an apocalyptic number.

It is an amenable number.

501245137 is a deficient number, since it is larger than the sum of its proper divisors (26381343).

501245137 is a wasteful number, since it uses less digits than its factorization.

501245137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26381342.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 501245137 is about 22388.5045726596. The cubic root of 501245137 is about 794.3588237667.

The spelling of 501245137 in words is "five hundred one million, two hundred forty-five thousand, one hundred thirty-seven".