149185131 has 16 divisors (see below), whose sum is σ = 210781440. Its totient is φ = 93592800.

The previous prime is 149185121. The next prime is 149185151. The reversal of 149185131 is 131581941.

It is not a de Polignac number, because 149185131 - 2⁶ = 149185067 is a prime.

It is a super-2 number, since 2×149185131² = 44512406622974322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 149185092 and 149185101.

It is not an unprimeable number, because it can be changed into a prime (149185121) 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 15 ways as a sum of consecutive naturals, for example, 60 + ... + 17273.

It is an arithmetic number, because the mean of its divisors is an integer number (13173840).

Almost surely, 2^149185131 is an apocalyptic number.

149185131 is a deficient number, since it is larger than the sum of its proper divisors (61596309).

149185131 is a wasteful number, since it uses less digits than its factorization.

149185131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17506.

The product of its digits is 4320, while the sum is 33.

The square root of 149185131 is about 12214.1365228984. The cubic root of 149185131 is about 530.3653953534.

The spelling of 149185131 in words is "one hundred forty-nine million, one hundred eighty-five thousand, one hundred thirty-one".