151320623 has 2 divisors, whose sum is σ = 151320624. Its totient is φ = 151320622.

The previous prime is 151320613. The next prime is 151320643. The reversal of 151320623 is 326023151.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 151320623 - 2²⁴ = 134543407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151320613) 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 as a sum of consecutive naturals, namely, 75660311 + 75660312.

It is an arithmetic number, because the mean of its divisors is an integer number (75660312).

Almost surely, 2^151320623 is an apocalyptic number.

151320623 is a deficient number, since it is larger than the sum of its proper divisors (1).

151320623 is an equidigital number, since it uses as much as digits as its factorization.

151320623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 151320623 is about 12301.2447744121. The cubic root of 151320623 is about 532.8840322309.

Adding to 151320623 its reverse (326023151), we get a palindrome (477343774).

The spelling of 151320623 in words is "one hundred fifty-one million, three hundred twenty thousand, six hundred twenty-three".