149097157 has 8 divisors (see below), whose sum is σ = 172219392. Its totient is φ = 127569600.

The previous prime is 149097139. The next prime is 149097163. The reversal of 149097157 is 751790941.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149097157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149097127) 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, 398469 + ... + 398842.

It is an arithmetic number, because the mean of its divisors is an integer number (21527424).

Almost surely, 2^149097157 is an apocalyptic number.

149097157 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

149097157 is a deficient number, since it is larger than the sum of its proper divisors (23122235).

149097157 is a wasteful number, since it uses less digits than its factorization.

149097157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797339.

The product of its (nonzero) digits is 79380, while the sum is 43.

The square root of 149097157 is about 12210.5346729781. The cubic root of 149097157 is about 530.2611232556.

The spelling of 149097157 in words is "one hundred forty-nine million, ninety-seven thousand, one hundred fifty-seven".