61354971 has 18 divisors (see below), whose sum is σ = 93444260. Its totient is φ = 38685816.

The previous prime is 61354963. The next prime is 61354999. The reversal of 61354971 is 17945316.

It is not a de Polignac number, because 61354971 - 2³ = 61354963 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61454971) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 102130 + ... + 102728.

Almost surely, 2^61354971 is an apocalyptic number.

61354971 is a deficient number, since it is larger than the sum of its proper divisors (32089289).

61354971 is an equidigital number, since it uses as much as digits as its factorization.

61354971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223 (or 621 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 61354971 is about 7832.9414015426. The cubic root of 61354971 is about 394.4118169990.

The spelling of 61354971 in words is "sixty-one million, three hundred fifty-four thousand, nine hundred seventy-one".