61155330 has 32 divisors (see below), whose sum is σ = 147009600. Its totient is φ = 16281792.

The previous prime is 61155271. The next prime is 61155349. The reversal of 61155330 is 3355116.

It is a self number, because there is not a number n which added to its sum of digits gives 61155330.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23641 + ... + 26099.

It is an arithmetic number, because the mean of its divisors is an integer number (4594050).

Almost surely, 2^61155330 is an apocalyptic number.

61155330 is an abundant number, since it is smaller than the sum of its proper divisors (85854270).

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

61155330 is a wasteful number, since it uses less digits than its factorization.

61155330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3298.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 61155330 is about 7820.1873379095. The cubic root of 61155330 is about 393.9835641232.

The spelling of 61155330 in words is "sixty-one million, one hundred fifty-five thousand, three hundred thirty".