61874537 has 2 divisors, whose sum is σ = 61874538. Its totient is φ = 61874536.

The previous prime is 61874497. The next prime is 61874563. The reversal of 61874537 is 73547816.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61842496 + 32041 = 7864^2 + 179^2 .

It is a cyclic number.

It is not a de Polignac number, because 61874537 - 2²⁴ = 45097321 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 61874494 and 61874503.

It is not a weakly prime, because it can be changed into another prime (61874587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30937268 + 30937269.

It is an arithmetic number, because the mean of its divisors is an integer number (30937269).

Almost surely, 2^61874537 is an apocalyptic number.

It is an amenable number.

61874537 is a deficient number, since it is larger than the sum of its proper divisors (1).

61874537 is an equidigital number, since it uses as much as digits as its factorization.

61874537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 41.

The square root of 61874537 is about 7866.0369310092. The cubic root of 61874537 is about 395.5220081272.

The spelling of 61874537 in words is "sixty-one million, eight hundred seventy-four thousand, five hundred thirty-seven".