61148475 has 18 divisors (see below), whose sum is σ = 109524116. Its totient is φ = 32612400.

The previous prime is 61148471. The next prime is 61148489. The reversal of 61148475 is 57484116.

It is a happy number.

It is not a de Polignac number, because 61148475 - 2² = 61148471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61148471) 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, 135661 + ... + 136110.

Almost surely, 2^61148475 is an apocalyptic number.

61148475 is a deficient number, since it is larger than the sum of its proper divisors (48375641).

61148475 is a wasteful number, since it uses less digits than its factorization.

61148475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271787 (or 271779 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 61148475 is about 7819.7490368937. The cubic root of 61148475 is about 393.9688428212.

The spelling of 61148475 in words is "sixty-one million, one hundred forty-eight thousand, four hundred seventy-five".