196154231 has 32 divisors (see below), whose sum is σ = 251596800. Its totient is φ = 148740480.

The previous prime is 196154227. The next prime is 196154237. The reversal of 196154231 is 132451691.

It is not a de Polignac number, because 196154231 - 2² = 196154227 is a prime.

It is a super-2 number, since 2×196154231² = 76952964678402722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196154237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 630566 + ... + 630876.

It is an arithmetic number, because the mean of its divisors is an integer number (7862400).

Almost surely, 2^196154231 is an apocalyptic number.

196154231 is a deficient number, since it is larger than the sum of its proper divisors (55442569).

196154231 is a wasteful number, since it uses less digits than its factorization.

196154231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599.

The product of its digits is 6480, while the sum is 32.

The square root of 196154231 is about 14005.5071668255. The cubic root of 196154231 is about 581.0308964761.

The spelling of 196154231 in words is "one hundred ninety-six million, one hundred fifty-four thousand, two hundred thirty-one".