149920937 has 4 divisors (see below), whose sum is σ = 150081876. Its totient is φ = 149760000.

The previous prime is 149920933. The next prime is 149920949. The reversal of 149920937 is 739029941.

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

It can be written as a sum of positive squares in 2 ways, for example, as 91795561 + 58125376 = 9581^2 + 7624^2 .

It is a cyclic number.

It is not a de Polignac number, because 149920937 - 2² = 149920933 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149920931) 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, 79064 + ... + 80937.

It is an arithmetic number, because the mean of its divisors is an integer number (37520469).

Almost surely, 2^149920937 is an apocalyptic number.

It is an amenable number.

149920937 is a deficient number, since it is larger than the sum of its proper divisors (160939).

149920937 is an equidigital number, since it uses as much as digits as its factorization.

149920937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160938.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 149920937 is about 12244.2205550211. The cubic root of 149920937 is about 531.2359159911.

The spelling of 149920937 in words is "one hundred forty-nine million, nine hundred twenty thousand, nine hundred thirty-seven".