61214971 has 2 divisors, whose sum is σ = 61214972. Its totient is φ = 61214970.

The previous prime is 61214921. The next prime is 61215023. The reversal of 61214971 is 17941216.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61214971 - 2¹¹ = 61212923 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61214921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30607485 + 30607486.

It is an arithmetic number, because the mean of its divisors is an integer number (30607486).

Almost surely, 2^61214971 is an apocalyptic number.

61214971 is a deficient number, since it is larger than the sum of its proper divisors (1).

61214971 is an equidigital number, since it uses as much as digits as its factorization.

61214971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 31.

The square root of 61214971 is about 7823.9996804703. Note that the first 3 decimals coincide. The cubic root of 61214971 is about 394.1115984216. Note that the first 3 decimals are identical.

The spelling of 61214971 in words is "sixty-one million, two hundred fourteen thousand, nine hundred seventy-one".