136451497 has 8 divisors (see below), whose sum is σ = 167940416. Its totient is φ = 107961552.

The previous prime is 136451489. The next prime is 136451509. The reversal of 136451497 is 794154631.

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 136451497 - 2³ = 136451489 is a prime.

It is a super-2 number, since 2×136451497² = 37238022067082018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136451417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 749643 + ... + 749824.

It is an arithmetic number, because the mean of its divisors is an integer number (20992552).

Almost surely, 2^136451497 is an apocalyptic number.

It is an amenable number.

136451497 is a deficient number, since it is larger than the sum of its proper divisors (31488919).

136451497 is a wasteful number, since it uses less digits than its factorization.

136451497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499487.

The product of its digits is 90720, while the sum is 40.

The square root of 136451497 is about 11681.2455243437. The cubic root of 136451497 is about 514.8247708748.

The spelling of 136451497 in words is "one hundred thirty-six million, four hundred fifty-one thousand, four hundred ninety-seven".