196742451 has 4 divisors (see below), whose sum is σ = 262323272. Its totient is φ = 131161632.

The previous prime is 196742417. The next prime is 196742459. The reversal of 196742451 is 154247691.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 196742451 - 2⁹ = 196741939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196742459) 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, 32790406 + ... + 32790411.

It is an arithmetic number, because the mean of its divisors is an integer number (65580818).

Almost surely, 2^196742451 is an apocalyptic number.

196742451 is a deficient number, since it is larger than the sum of its proper divisors (65580821).

196742451 is an equidigital number, since it uses as much as digits as its factorization.

196742451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65580820.

The product of its digits is 60480, while the sum is 39.

The square root of 196742451 is about 14026.4910437358. The cubic root of 196742451 is about 581.6111081581.

The spelling of 196742451 in words is "one hundred ninety-six million, seven hundred forty-two thousand, four hundred fifty-one".