151209423 has 36 divisors (see below), whose sum is σ = 232518104. Its totient is φ = 98172000.

The previous prime is 151209379. The next prime is 151209427. The reversal of 151209423 is 324902151.

It is not a de Polignac number, because 151209423 - 2¹⁰ = 151208399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151209427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1497073 + ... + 1497173.

Almost surely, 2^151209423 is an apocalyptic number.

151209423 is a deficient number, since it is larger than the sum of its proper divisors (81308681).

151209423 is an frugal number, since it uses more digits than its factorization.

151209423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 151209423 is about 12296.7240759480. The cubic root of 151209423 is about 532.7534679048.

The spelling of 151209423 in words is "one hundred fifty-one million, two hundred nine thousand, four hundred twenty-three".