61412137 has 4 divisors (see below), whose sum is σ = 62910036. Its totient is φ = 59914240.

The previous prime is 61412101. The next prime is 61412167. The reversal of 61412137 is 73121416.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16736281 + 44675856 = 4091^2 + 6684^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61412137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61412167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 748888 + ... + 748969.

It is an arithmetic number, because the mean of its divisors is an integer number (15727509).

Almost surely, 2^61412137 is an apocalyptic number.

It is an amenable number.

61412137 is a deficient number, since it is larger than the sum of its proper divisors (1497899).

61412137 is a wasteful number, since it uses less digits than its factorization.

61412137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497898.

The product of its digits is 1008, while the sum is 25.

The square root of 61412137 is about 7836.5896281482. The cubic root of 61412137 is about 394.5342735099.

The spelling of 61412137 in words is "sixty-one million, four hundred twelve thousand, one hundred thirty-seven".