61275151 has 8 divisors (see below), whose sum is σ = 73073664. Its totient is φ = 50237880.

The previous prime is 61275143. The next prime is 61275161. The reversal of 61275151 is 15157216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61275151 - 2³ = 61275143 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 (61275121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190135 + ... + 190456.

It is an arithmetic number, because the mean of its divisors is an integer number (9134208).

Almost surely, 2^61275151 is an apocalyptic number.

61275151 is a deficient number, since it is larger than the sum of its proper divisors (11798513).

61275151 is a wasteful number, since it uses less digits than its factorization.

61275151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380621.

The product of its digits is 2100, while the sum is 28.

The square root of 61275151 is about 7827.8445947783. The cubic root of 61275151 is about 394.2407055536.

The spelling of 61275151 in words is "sixty-one million, two hundred seventy-five thousand, one hundred fifty-one".