149539862 has 4 divisors (see below), whose sum is σ = 224309796. Its totient is φ = 74769930.

The previous prime is 149539849. The next prime is 149539867. The reversal of 149539862 is 268935941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 268935941 = 23 ⋅11692867.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149539867) 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 as a sum of consecutive naturals, namely, 37384964 + ... + 37384967.

It is an arithmetic number, because the mean of its divisors is an integer number (56077449).

Almost surely, 2^149539862 is an apocalyptic number.

149539862 is a deficient number, since it is larger than the sum of its proper divisors (74769934).

149539862 is an equidigital number, since it uses as much as digits as its factorization.

149539862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74769933.

The product of its digits is 466560, while the sum is 47.

The square root of 149539862 is about 12228.6492303934. The cubic root of 149539862 is about 530.7854285601.

The spelling of 149539862 in words is "one hundred forty-nine million, five hundred thirty-nine thousand, eight hundred sixty-two".