61042437 has 16 divisors (see below), whose sum is σ = 94366080. Its totient is φ = 38925216.

The previous prime is 61042411. The next prime is 61042439. The reversal of 61042437 is 73424016.

61042437 is a `hidden beast` number, since 610 + 4 + 2 + 43 + 7 = 666.

It is not a de Polignac number, because 61042437 - 2⁸ = 61042181 is a prime.

It is a super-2 number, since 2×61042437² = 7452358229797938, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 61042437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61042439) 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, 48528 + ... + 49769.

It is an arithmetic number, because the mean of its divisors is an integer number (5897880).

Almost surely, 2^61042437 is an apocalyptic number.

It is an amenable number.

61042437 is a deficient number, since it is larger than the sum of its proper divisors (33323643).

61042437 is a wasteful number, since it uses less digits than its factorization.

61042437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98329 (or 98323 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 61042437 is about 7812.9659541048. The cubic root of 61042437 is about 393.7409830135.

The spelling of 61042437 in words is "sixty-one million, forty-two thousand, four hundred thirty-seven".