149976983 has 4 divisors (see below), whose sum is σ = 161513688. Its totient is φ = 138440280.

The previous prime is 149976973. The next prime is 149976989. The reversal of 149976983 is 389679941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 389679941 = 7 ⋅55668563.

It is a cyclic number.

It is not a de Polignac number, because 149976983 - 2¹² = 149972887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149976989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5768333 + ... + 5768358.

It is an arithmetic number, because the mean of its divisors is an integer number (40378422).

Almost surely, 2^149976983 is an apocalyptic number.

149976983 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

149976983 is a deficient number, since it is larger than the sum of its proper divisors (11536705).

149976983 is a wasteful number, since it uses less digits than its factorization.

149976983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11536704.

The product of its digits is 2939328, while the sum is 56.

The square root of 149976983 is about 12246.5090127758. The cubic root of 149976983 is about 531.3021062986.

The spelling of 149976983 in words is "one hundred forty-nine million, nine hundred seventy-six thousand, nine hundred eighty-three".