61466137 has 2 divisors, whose sum is σ = 61466138. Its totient is φ = 61466136.

The previous prime is 61466071. The next prime is 61466183. The reversal of 61466137 is 73166416.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41938576 + 19527561 = 6476^2 + 4419^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61466137 is a prime.

It is not a weakly prime, because it can be changed into another prime (61463137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30733068 + 30733069.

It is an arithmetic number, because the mean of its divisors is an integer number (30733069).

Almost surely, 2^61466137 is an apocalyptic number.

It is an amenable number.

61466137 is a deficient number, since it is larger than the sum of its proper divisors (1).

61466137 is an equidigital number, since it uses as much as digits as its factorization.

61466137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 34.

The square root of 61466137 is about 7840.0342473742. The cubic root of 61466137 is about 394.6498782875.

The spelling of 61466137 in words is "sixty-one million, four hundred sixty-six thousand, one hundred thirty-seven".