61237042 has 4 divisors (see below), whose sum is σ = 91855566. Its totient is φ = 30618520.

The previous prime is 61237037. The next prime is 61237049. The reversal of 61237042 is 24073216.

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., 60512841 + 724201 = 7779^2 + 851^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61236998 and 61237016.

It is not an unprimeable number, because it can be changed into a prime (61237049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15309259 + ... + 15309262.

Almost surely, 2^61237042 is an apocalyptic number.

61237042 is a deficient number, since it is larger than the sum of its proper divisors (30618524).

61237042 is a wasteful number, since it uses less digits than its factorization.

61237042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30618523.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 61237042 is about 7825.4100212066. The cubic root of 61237042 is about 394.1589582518.

The spelling of 61237042 in words is "sixty-one million, two hundred thirty-seven thousand, forty-two".