61651127 has 4 divisors (see below), whose sum is σ = 61812480. Its totient is φ = 61489776.

The previous prime is 61651123. The next prime is 61651133. The reversal of 61651127 is 72115616.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61651127 - 2² = 61651123 is a prime.

It is a super-2 number, since 2×61651127² = 7601722920740258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61651127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61651123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80102 + ... + 80867.

It is an arithmetic number, because the mean of its divisors is an integer number (15453120).

Almost surely, 2^61651127 is an apocalyptic number.

61651127 is a deficient number, since it is larger than the sum of its proper divisors (161353).

61651127 is a wasteful number, since it uses less digits than its factorization.

61651127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161352.

The product of its digits is 2520, while the sum is 29.

The square root of 61651127 is about 7851.8231640811. The cubic root of 61651127 is about 395.0453977625.

The spelling of 61651127 in words is "sixty-one million, six hundred fifty-one thousand, one hundred twenty-seven".