61364019 has 16 divisors (see below), whose sum is σ = 85192352. Its totient is φ = 39253248.

The previous prime is 61363997. The next prime is 61364041. The reversal of 61364019 is 91046316.

It is an interprime number because it is at equal distance from previous prime (61363997) and next prime (61364041).

It is not a de Polignac number, because 61364019 - 2⁷ = 61363891 is a prime.

It is a super-2 number, since 2×61364019² = 7531085655664722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61364059) 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, 4317 + ... + 11889.

It is an arithmetic number, because the mean of its divisors is an integer number (5324522).

Almost surely, 2^61364019 is an apocalyptic number.

61364019 is a deficient number, since it is larger than the sum of its proper divisors (23828333).

61364019 is a wasteful number, since it uses less digits than its factorization.

61364019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7686.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 61364019 is about 7833.5189410635. The cubic root of 61364019 is about 394.4312039785.

The spelling of 61364019 in words is "sixty-one million, three hundred sixty-four thousand, nineteen".