149472791 has 32 divisors (see below), whose sum is σ = 179504640. Its totient is φ = 123133824.

The previous prime is 149472787. The next prime is 149472811. The reversal of 149472791 is 197274941.

It is a cyclic number.

It is not a de Polignac number, because 149472791 - 2² = 149472787 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149472781) 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 31 ways as a sum of consecutive naturals, for example, 471365 + ... + 471681.

It is an arithmetic number, because the mean of its divisors is an integer number (5609520).

Almost surely, 2^149472791 is an apocalyptic number.

149472791 is a deficient number, since it is larger than the sum of its proper divisors (30031849).

149472791 is a wasteful number, since it uses less digits than its factorization.

149472791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455.

The product of its digits is 127008, while the sum is 44.

The square root of 149472791 is about 12225.9065512542. The cubic root of 149472791 is about 530.7060614653.

The spelling of 149472791 in words is "one hundred forty-nine million, four hundred seventy-two thousand, seven hundred ninety-one".