149372642 has 32 divisors (see below), whose sum is σ = 252175680. Its totient is φ = 65940480.

The previous prime is 149372633. The next prime is 149372651. The reversal of 149372642 is 246273941.

It is an interprime number because it is at equal distance from previous prime (149372633) and next prime (149372651).

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 149372596 and 149372605.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68042 + ... + 70202.

It is an arithmetic number, because the mean of its divisors is an integer number (7880490).

Almost surely, 2^149372642 is an apocalyptic number.

149372642 is a deficient number, since it is larger than the sum of its proper divisors (102803038).

149372642 is a wasteful number, since it uses less digits than its factorization.

149372642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306.

The product of its digits is 72576, while the sum is 38.

The square root of 149372642 is about 12221.8100950718. The cubic root of 149372642 is about 530.5875079908.

The spelling of 149372642 in words is "one hundred forty-nine million, three hundred seventy-two thousand, six hundred forty-two".