61153458 has 24 divisors (see below), whose sum is σ = 127862448. Its totient is φ = 19497192.

The previous prime is 61153447. The next prime is 61153501. The reversal of 61153458 is 85435116.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6460 + ... + 12807.

It is an arithmetic number, because the mean of its divisors is an integer number (5327602).

Almost surely, 2^61153458 is an apocalyptic number.

61153458 is an abundant number, since it is smaller than the sum of its proper divisors (66708990).

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

61153458 is a wasteful number, since it uses less digits than its factorization.

61153458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19318 (or 19295 counting only the distinct ones).

The product of its digits is 14400, while the sum is 33.

The square root of 61153458 is about 7820.0676467662. The cubic root of 61153458 is about 393.9795440607.

The spelling of 61153458 in words is "sixty-one million, one hundred fifty-three thousand, four hundred fifty-eight".