61019902 has 8 divisors (see below), whose sum is σ = 96914016. Its totient is φ = 28715232.

The previous prime is 61019899. The next prime is 61019911. The reversal of 61019902 is 20991016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 897318 + ... + 897385.

It is an arithmetic number, because the mean of its divisors is an integer number (12114252).

Almost surely, 2^61019902 is an apocalyptic number.

61019902 is a deficient number, since it is larger than the sum of its proper divisors (35894114).

61019902 is a wasteful number, since it uses less digits than its factorization.

61019902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794722.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 61019902 is about 7811.5236669935. The cubic root of 61019902 is about 393.6925246754.

The spelling of 61019902 in words is "sixty-one million, nineteen thousand, nine hundred two".