150398923 has 2 divisors, whose sum is σ = 150398924. Its totient is φ = 150398922.

The previous prime is 150398921. The next prime is 150398929. The reversal of 150398923 is 329893051.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 150398923 - 2¹ = 150398921 is a prime.

Together with 150398921, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (150398921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75199461 + 75199462.

It is an arithmetic number, because the mean of its divisors is an integer number (75199462).

Almost surely, 2^150398923 is an apocalyptic number.

150398923 is a deficient number, since it is larger than the sum of its proper divisors (1).

150398923 is an equidigital number, since it uses as much as digits as its factorization.

150398923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 150398923 is about 12263.7238634927. The cubic root of 150398923 is about 531.7998886984.

It can be divided in two parts, 150398 and 923, that added together give a square (151321 = 389²).

The spelling of 150398923 in words is "one hundred fifty million, three hundred ninety-eight thousand, nine hundred twenty-three".