61154868 has 12 divisors (see below), whose sum is σ = 142694720. Its totient is φ = 20384952.

The previous prime is 61154867. The next prime is 61154869. The reversal of 61154868 is 86845116.

It is an interprime number because it is at equal distance from previous prime (61154867) and next prime (61154869).

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61154867) 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, 2548108 + ... + 2548131.

Almost surely, 2^61154868 is an apocalyptic number.

It is an amenable number.

61154868 is an abundant number, since it is smaller than the sum of its proper divisors (81539852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61154868 is a wasteful number, since it uses less digits than its factorization.

61154868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5096246 (or 5096244 counting only the distinct ones).

The product of its digits is 46080, while the sum is 39.

The square root of 61154868 is about 7820.1577989194. The cubic root of 61154868 is about 393.9825720000.

The spelling of 61154868 in words is "sixty-one million, one hundred fifty-four thousand, eight hundred sixty-eight".