149274133 has 4 divisors (see below), whose sum is σ = 149313868. Its totient is φ = 149234400.

The previous prime is 149274101. The next prime is 149274143. The reversal of 149274133 is 331472941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 331472941 = 23 ⋅14411867.

It can be written as a sum of positive squares in 2 ways, for example, as 7711729 + 141562404 = 2777^2 + 11898^2 .

It is a cyclic number.

It is not a de Polignac number, because 149274133 - 2⁵ = 149274101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149274143) 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, 13566 + ... + 21967.

It is an arithmetic number, because the mean of its divisors is an integer number (37328467).

Almost surely, 2^149274133 is an apocalyptic number.

It is an amenable number.

149274133 is a deficient number, since it is larger than the sum of its proper divisors (39735).

149274133 is an equidigital number, since it uses as much as digits as its factorization.

149274133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39734.

The product of its digits is 18144, while the sum is 34.

The square root of 149274133 is about 12217.7793808859. The cubic root of 149274133 is about 530.4708441934.

It can be divided in two parts, 1492 and 74133, that added together give a square (75625 = 275²).

The spelling of 149274133 in words is "one hundred forty-nine million, two hundred seventy-four thousand, one hundred thirty-three".