149427646 has 4 divisors (see below), whose sum is σ = 224141472. Its totient is φ = 74713822.

The previous prime is 149427611. The next prime is 149427653. The reversal of 149427646 is 646724941.

149427646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37356910 + ... + 37356913.

It is an arithmetic number, because the mean of its divisors is an integer number (56035368).

Almost surely, 2^149427646 is an apocalyptic number.

149427646 is a deficient number, since it is larger than the sum of its proper divisors (74713826).

149427646 is an equidigital number, since it uses as much as digits as its factorization.

149427646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74713825.

The product of its digits is 290304, while the sum is 43.

The square root of 149427646 is about 12224.0601274699. The cubic root of 149427646 is about 530.6526266841.

The spelling of 149427646 in words is "one hundred forty-nine million, four hundred twenty-seven thousand, six hundred forty-six".