61181152 has 12 divisors (see below), whose sum is σ = 120450456. Its totient is φ = 30590560.

The previous prime is 61181119. The next prime is 61181179. The reversal of 61181152 is 25118116.

It is a happy number.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 955924 + ... + 955987.

It is an arithmetic number, because the mean of its divisors is an integer number (10037538).

Almost surely, 2^61181152 is an apocalyptic number.

It is an amenable number.

61181152 is a deficient number, since it is larger than the sum of its proper divisors (59269304).

61181152 is a wasteful number, since it uses less digits than its factorization.

61181152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911921 (or 1911913 counting only the distinct ones).

The product of its digits is 480, while the sum is 25.

The square root of 61181152 is about 7821.8381471365. The cubic root of 61181152 is about 394.0390077074.

Adding to 61181152 its reverse (25118116), we get a palindrome (86299268).

The spelling of 61181152 in words is "sixty-one million, one hundred eighty-one thousand, one hundred fifty-two".