149721291 has 28 divisors (see below), whose sum is σ = 228349560. Its totient is φ = 98122428.

The previous prime is 149721281. The next prime is 149721301. The reversal of 149721291 is 192127941.

The cubic root of 149721291 is 531.

It is a perfect power (a cube), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (149721281) and next prime (149721301).

It is not a de Polignac number, because 149721291 - 2⁷ = 149721163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149721251) 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 27 ways as a sum of consecutive naturals, for example, 2537620 + ... + 2537678.

Almost surely, 2^149721291 is an apocalyptic number.

149721291 is a deficient number, since it is larger than the sum of its proper divisors (78628269).

149721291 is an frugal number, since it uses more digits than its factorization.

149721291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 62 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 149721291 is about 12236.0651763547.

The spelling of 149721291 in words is "one hundred forty-nine million, seven hundred twenty-one thousand, two hundred ninety-one".