149425481 has 12 divisors (see below), whose sum is σ = 159635952. Its totient is φ = 139827384.

The previous prime is 149425453. The next prime is 149425483. The reversal of 149425481 is 184524941.

It is not a de Polignac number, because 149425481 - 2¹⁸ = 149163337 is a prime.

It is a super-2 number, since 2×149425481² = 44655948744162722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149425483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27470 + ... + 32456.

It is an arithmetic number, because the mean of its divisors is an integer number (13302996).

Almost surely, 2^149425481 is an apocalyptic number.

It is an amenable number.

149425481 is a deficient number, since it is larger than the sum of its proper divisors (10210471).

149425481 is an equidigital number, since it uses as much as digits as its factorization.

149425481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5108 (or 5089 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 149425481 is about 12223.9715722837. The cubic root of 149425481 is about 530.6500638641.

The spelling of 149425481 in words is "one hundred forty-nine million, four hundred twenty-five thousand, four hundred eighty-one".