61138119 has 16 divisors (see below), whose sum is σ = 96376320. Its totient is φ = 33731040.

The previous prime is 61138111. The next prime is 61138139. The reversal of 61138119 is 91183116.

It is not a de Polignac number, because 61138119 - 2³ = 61138111 is a prime.

It is a super-2 number, since 2×61138119² = 7475739189716322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61138111) 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, 49587 + ... + 50804.

It is an arithmetic number, because the mean of its divisors is an integer number (6023520).

Almost surely, 2^61138119 is an apocalyptic number.

61138119 is a deficient number, since it is larger than the sum of its proper divisors (35238201).

61138119 is a wasteful number, since it uses less digits than its factorization.

61138119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100430.

The product of its digits is 1296, while the sum is 30.

The square root of 61138119 is about 7819.0868392671. The cubic root of 61138119 is about 393.9466009382.

The spelling of 61138119 in words is "sixty-one million, one hundred thirty-eight thousand, one hundred nineteen".