149553151 has 16 divisors (see below), whose sum is σ = 167453568. Its totient is φ = 132415200.

The previous prime is 149553143. The next prime is 149553163. The reversal of 149553151 is 151355941.

It is a cyclic number.

It is not a de Polignac number, because 149553151 - 2³ = 149553143 is a prime.

It is a super-2 number, since 2×149553151² = 44732289948057602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149553101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70756 + ... + 72838.

It is an arithmetic number, because the mean of its divisors is an integer number (10465848).

Almost surely, 2^149553151 is an apocalyptic number.

149553151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

149553151 is a deficient number, since it is larger than the sum of its proper divisors (17900417).

149553151 is a wasteful number, since it uses less digits than its factorization.

149553151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2262.

The product of its digits is 13500, while the sum is 34.

The square root of 149553151 is about 12229.1925735103. The cubic root of 149553151 is about 530.8011510093.

The spelling of 149553151 in words is "one hundred forty-nine million, five hundred fifty-three thousand, one hundred fifty-one".