149383642 has 4 divisors (see below), whose sum is σ = 224075466. Its totient is φ = 74691820.

The previous prime is 149383639. The next prime is 149383651. The reversal of 149383642 is 246383941.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 112550881 + 36832761 = 10609^2 + 6069^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 149383595 and 149383604.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37345909 + ... + 37345912.

Almost surely, 2^149383642 is an apocalyptic number.

149383642 is a deficient number, since it is larger than the sum of its proper divisors (74691824).

149383642 is an equidigital number, since it uses as much as digits as its factorization.

149383642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74691823.

The product of its digits is 124416, while the sum is 40.

The square root of 149383642 is about 12222.2601019615. The cubic root of 149383642 is about 530.6005320610.

The spelling of 149383642 in words is "one hundred forty-nine million, three hundred eighty-three thousand, six hundred forty-two".