149054257 has 8 divisors (see below), whose sum is σ = 163038240. Its totient is φ = 135142560.

The previous prime is 149054239. The next prime is 149054261. The reversal of 149054257 is 752450941.

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 149054257 - 2²³ = 140665649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149054207) 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, 13708 + ... + 22045.

It is an arithmetic number, because the mean of its divisors is an integer number (20379780).

Almost surely, 2^149054257 is an apocalyptic number.

It is an amenable number.

149054257 is a deficient number, since it is larger than the sum of its proper divisors (13983983).

149054257 is a wasteful number, since it uses less digits than its factorization.

149054257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36143.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 149054257 is about 12208.7778667646. Note that the first 3 decimals coincide. The cubic root of 149054257 is about 530.2102607067.

The spelling of 149054257 in words is "one hundred forty-nine million, fifty-four thousand, two hundred fifty-seven".