149425791 has 8 divisors (see below), whose sum is σ = 199382400. Its totient is φ = 99543192.

The previous prime is 149425789. The next prime is 149425847. The reversal of 149425791 is 197524941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 149425791 - 2¹ = 149425789 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149425741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13605 + ... + 21998.

It is an arithmetic number, because the mean of its divisors is an integer number (24922800).

Almost surely, 2^149425791 is an apocalyptic number.

149425791 is a deficient number, since it is larger than the sum of its proper divisors (49956609).

149425791 is a wasteful number, since it uses less digits than its factorization.

149425791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37005.

The product of its digits is 90720, while the sum is 42.

The square root of 149425791 is about 12223.9842522804. The cubic root of 149425791 is about 530.6504308283.

The spelling of 149425791 in words is "one hundred forty-nine million, four hundred twenty-five thousand, seven hundred ninety-one".