149871452 has 6 divisors (see below), whose sum is σ = 262275048. Its totient is φ = 74935724.

The previous prime is 149871451. The next prime is 149871479. The reversal of 149871452 is 254178941.

It is a super-2 number, since 2×149871452² = 44922904249176608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149871451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18733928 + ... + 18733935.

It is an arithmetic number, because the mean of its divisors is an integer number (43712508).

Almost surely, 2^149871452 is an apocalyptic number.

It is an amenable number.

149871452 is a deficient number, since it is larger than the sum of its proper divisors (112403596).

149871452 is a wasteful number, since it uses less digits than its factorization.

149871452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37467867 (or 37467865 counting only the distinct ones).

The product of its digits is 80640, while the sum is 41.

The square root of 149871452 is about 12242.1996389538. The cubic root of 149871452 is about 531.1774605085.

The spelling of 149871452 in words is "one hundred forty-nine million, eight hundred seventy-one thousand, four hundred fifty-two".