151378423 has 4 divisors (see below), whose sum is σ = 173003920. Its totient is φ = 129752928.

The previous prime is 151378411. The next prime is 151378439. The reversal of 151378423 is 324873151.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151378423 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 (151378723) 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, 10812738 + ... + 10812751.

It is an arithmetic number, because the mean of its divisors is an integer number (43250980).

Almost surely, 2^151378423 is an apocalyptic number.

151378423 is a deficient number, since it is larger than the sum of its proper divisors (21625497).

151378423 is an equidigital number, since it uses as much as digits as its factorization.

151378423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21625496.

The product of its digits is 20160, while the sum is 34.

The square root of 151378423 is about 12303.5939058472. The cubic root of 151378423 is about 532.9518722377.

The spelling of 151378423 in words is "one hundred fifty-one million, three hundred seventy-eight thousand, four hundred twenty-three".