136472457 has 8 divisors (see below), whose sum is σ = 198505440. Its totient is φ = 82710560.

The previous prime is 136472449. The next prime is 136472489. The reversal of 136472457 is 754274631.

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

It is a cyclic number.

It is not a de Polignac number, because 136472457 - 2³ = 136472449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136472857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2067732 + ... + 2067797.

It is an arithmetic number, because the mean of its divisors is an integer number (24813180).

Almost surely, 2^136472457 is an apocalyptic number.

It is an amenable number.

136472457 is a deficient number, since it is larger than the sum of its proper divisors (62032983).

136472457 is a wasteful number, since it uses less digits than its factorization.

136472457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4135543.

The product of its digits is 141120, while the sum is 39.

The square root of 136472457 is about 11682.1426544962. The cubic root of 136472457 is about 514.8511298740.

The spelling of 136472457 in words is "one hundred thirty-six million, four hundred seventy-two thousand, four hundred fifty-seven".