61245807 has 16 divisors (see below), whose sum is σ = 94643712. Its totient is φ = 34503840.

The previous prime is 61245799. The next prime is 61245809. The reversal of 61245807 is 70854216.

It is not a de Polignac number, because 61245807 - 2³ = 61245799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61245809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19048 + ... + 22029.

It is an arithmetic number, because the mean of its divisors is an integer number (5915232).

Almost surely, 2^61245807 is an apocalyptic number.

61245807 is a deficient number, since it is larger than the sum of its proper divisors (33397905).

61245807 is a wasteful number, since it uses less digits than its factorization.

61245807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41158.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 61245807 is about 7825.9700357208. The cubic root of 61245807 is about 394.1777629836.

The spelling of 61245807 in words is "sixty-one million, two hundred forty-five thousand, eight hundred seven".