61322957 has 4 divisors (see below), whose sum is σ = 61341120. Its totient is φ = 61304796.

The previous prime is 61322951. The next prime is 61322969. The reversal of 61322957 is 75922316.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61322957 - 2²⁰ = 60274381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61322951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2357 + ... + 11322.

It is an arithmetic number, because the mean of its divisors is an integer number (15335280).

Almost surely, 2^61322957 is an apocalyptic number.

It is an amenable number.

61322957 is a deficient number, since it is larger than the sum of its proper divisors (18163).

61322957 is a wasteful number, since it uses less digits than its factorization.

61322957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18162.

The product of its digits is 22680, while the sum is 35.

The square root of 61322957 is about 7830.8975858454. The cubic root of 61322957 is about 394.3432058961.

The spelling of 61322957 in words is "sixty-one million, three hundred twenty-two thousand, nine hundred fifty-seven".