149677642 has 8 divisors (see below), whose sum is σ = 232258500. Its totient is φ = 72258144.

The previous prime is 149677609. The next prime is 149677663. The reversal of 149677642 is 246776941.

It can be written as a sum of positive squares in 2 ways, for example, as 130850721 + 18826921 = 11439^2 + 4339^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 149677592 and 149677601.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1290267 + ... + 1290382.

Almost surely, 2^149677642 is an apocalyptic number.

149677642 is a deficient number, since it is larger than the sum of its proper divisors (82580858).

149677642 is a wasteful number, since it uses less digits than its factorization.

149677642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2580680.

The product of its digits is 508032, while the sum is 46.

The square root of 149677642 is about 12234.2814255681. The cubic root of 149677642 is about 530.9483932856.

The spelling of 149677642 in words is "one hundred forty-nine million, six hundred seventy-seven thousand, six hundred forty-two".