149039131 has 2 divisors, whose sum is σ = 149039132. Its totient is φ = 149039130.

The previous prime is 149039117. The next prime is 149039171. The reversal of 149039131 is 131930941.

It is a weak prime.

It is an emirp because it is prime and its reverse (131930941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149039131 - 2¹³ = 149030939 is a prime.

It is a super-2 number, since 2×149039131² = 44425325138470322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 149039093 and 149039102.

It is not a weakly prime, because it can be changed into another prime (149039171) 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 as a sum of consecutive naturals, namely, 74519565 + 74519566.

It is an arithmetic number, because the mean of its divisors is an integer number (74519566).

Almost surely, 2^149039131 is an apocalyptic number.

149039131 is a deficient number, since it is larger than the sum of its proper divisors (1).

149039131 is an equidigital number, since it uses as much as digits as its factorization.

149039131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 149039131 is about 12208.1583787236. The cubic root of 149039131 is about 530.1923248850.

The spelling of 149039131 in words is "one hundred forty-nine million, thirty-nine thousand, one hundred thirty-one".