149274131 has 4 divisors (see below), whose sum is σ = 149302200. Its totient is φ = 149246064.

The previous prime is 149274101. The next prime is 149274143. The reversal of 149274131 is 131472941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131472941 = 4483 ⋅29327.

It is a cyclic number.

It is not a de Polignac number, because 149274131 - 2⁶ = 149274067 is a prime.

It is a super-2 number, since 2×149274131² = 44565532371610322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149274101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3341 + ... + 17598.

It is an arithmetic number, because the mean of its divisors is an integer number (37325550).

Almost surely, 2^149274131 is an apocalyptic number.

149274131 is a deficient number, since it is larger than the sum of its proper divisors (28069).

149274131 is an equidigital number, since it uses as much as digits as its factorization.

149274131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28068.

The product of its digits is 6048, while the sum is 32.

The square root of 149274131 is about 12217.7792990379. The cubic root of 149274131 is about 530.4708418243.

The spelling of 149274131 in words is "one hundred forty-nine million, two hundred seventy-four thousand, one hundred thirty-one".