61951159 has 2 divisors, whose sum is σ = 61951160. Its totient is φ = 61951158.

The previous prime is 61951139. The next prime is 61951171. The reversal of 61951159 is 95115916.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61951159 - 2¹³ = 61942967 is a prime.

It is a super-2 number, since 2×61951159² = 7675892202886562, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61951129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30975579 + 30975580.

It is an arithmetic number, because the mean of its divisors is an integer number (30975580).

Almost surely, 2^61951159 is an apocalyptic number.

61951159 is a deficient number, since it is larger than the sum of its proper divisors (1).

61951159 is an equidigital number, since it uses as much as digits as its factorization.

61951159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12150, while the sum is 37.

The square root of 61951159 is about 7870.9058563802. The cubic root of 61951159 is about 395.6852049647.

The spelling of 61951159 in words is "sixty-one million, nine hundred fifty-one thousand, one hundred fifty-nine".