61137026 has 4 divisors (see below), whose sum is σ = 91705542. Its totient is φ = 30568512.

The previous prime is 61137007. The next prime is 61137029. The reversal of 61137026 is 62073116.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 40896025 + 20241001 = 6395^2 + 4499^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61136986 and 61137004.

It is not an unprimeable number, because it can be changed into a prime (61137029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15284255 + ... + 15284258.

Almost surely, 2^61137026 is an apocalyptic number.

61137026 is a deficient number, since it is larger than the sum of its proper divisors (30568516).

61137026 is a wasteful number, since it uses less digits than its factorization.

61137026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30568515.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 61137026 is about 7819.0169458826. The cubic root of 61137026 is about 393.9442533237.

The spelling of 61137026 in words is "sixty-one million, one hundred thirty-seven thousand, twenty-six".