149207457 has 8 divisors (see below), whose sum is σ = 227363776. Its totient is φ = 85261392.

The previous prime is 149207449. The next prime is 149207501. The reversal of 149207457 is 754702941.

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

It is not a de Polignac number, because 149207457 - 2³ = 149207449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149207257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3552538 + ... + 3552579.

It is an arithmetic number, because the mean of its divisors is an integer number (28420472).

Almost surely, 2^149207457 is an apocalyptic number.

It is an amenable number.

149207457 is a deficient number, since it is larger than the sum of its proper divisors (78156319).

149207457 is an equidigital number, since it uses as much as digits as its factorization.

149207457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7105127.

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 149207457 is about 12215.0504296953. The cubic root of 149207457 is about 530.3918509551.

The spelling of 149207457 in words is "one hundred forty-nine million, two hundred seven thousand, four hundred fifty-seven".