97139554 has 8 divisors (see below), whose sum is σ = 150409728. Its totient is φ = 47002980.

The previous prime is 97139551. The next prime is 97139561. The reversal of 97139554 is 45593179.

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

It is a self number, because there is not a number n which added to its sum of digits gives 97139554.

It is not an unprimeable number, because it can be changed into a prime (97139551) 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, 783322 + ... + 783445.

It is an arithmetic number, because the mean of its divisors is an integer number (18801216).

Almost surely, 2^97139554 is an apocalyptic number.

97139554 is a deficient number, since it is larger than the sum of its proper divisors (53270174).

97139554 is a wasteful number, since it uses less digits than its factorization.

97139554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566800.

The product of its digits is 170100, while the sum is 43.

The square root of 97139554 is about 9855.9400363436. The cubic root of 97139554 is about 459.6903303311.

The spelling of 97139554 in words is "ninety-seven million, one hundred thirty-nine thousand, five hundred fifty-four".