149321642 has 8 divisors (see below), whose sum is σ = 237157956. Its totient is φ = 70268992.

The previous prime is 149321587. The next prime is 149321707. The reversal of 149321642 is 246123941.

It can be written as a sum of positive squares in 2 ways, for example, as 146192281 + 3129361 = 12091^2 + 1769^2 .

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 = 149321599 and 149321608.

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, 2195873 + ... + 2195940.

Almost surely, 2^149321642 is an apocalyptic number.

149321642 is a deficient number, since it is larger than the sum of its proper divisors (87836314).

149321642 is a wasteful number, since it uses less digits than its factorization.

149321642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4391832.

The product of its digits is 10368, while the sum is 32.

The square root of 149321642 is about 12219.7234829598. The cubic root of 149321642 is about 530.5271153093.

The spelling of 149321642 in words is "one hundred forty-nine million, three hundred twenty-one thousand, six hundred forty-two".