149888457 has 6 divisors (see below), whose sum is σ = 216505562. Its totient is φ = 99925632.

The previous prime is 149888437. The next prime is 149888461. The reversal of 149888457 is 754888941.

It can be written as a sum of positive squares in only one way, i.e., 137100681 + 12787776 = 11709^2 + 3576^2 .

It is not a de Polignac number, because 149888457 - 2¹⁵ = 149855689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149888437) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8327128 + ... + 8327145.

Almost surely, 2^149888457 is an apocalyptic number.

It is an amenable number.

149888457 is a deficient number, since it is larger than the sum of its proper divisors (66617105).

149888457 is a wasteful number, since it uses less digits than its factorization.

149888457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16654279 (or 16654276 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 54.

The square root of 149888457 is about 12242.8941431346. The cubic root of 149888457 is about 531.1975495714.

It can be divided in two parts, 1498884 and 57, that added together give a palindrome (1498941).

The spelling of 149888457 in words is "one hundred forty-nine million, eight hundred eighty-eight thousand, four hundred fifty-seven".