149264642 has 18 divisors (see below), whose sum is σ = 229609737. Its totient is φ = 72774936.

The previous prime is 149264629. The next prime is 149264657. The reversal of 149264642 is 246462941.

It can be written as a sum of positive squares in 2 ways, for example, as 141586201 + 7678441 = 11899^2 + 2771^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=8639.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149264596 and 149264605.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 915653 + ... + 915815.

Almost surely, 2^149264642 is an apocalyptic number.

149264642 is a deficient number, since it is larger than the sum of its proper divisors (80345095).

149264642 is an frugal number, since it uses more digits than its factorization.

149264642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 218 counting only the distinct ones).

The product of its digits is 82944, while the sum is 38.

The square root of 149264642 is about 12217.3909653412. The cubic root of 149264642 is about 530.4596013312.

The spelling of 149264642 in words is "one hundred forty-nine million, two hundred sixty-four thousand, six hundred forty-two".