151923913 has 2 divisors, whose sum is σ = 151923914. Its totient is φ = 151923912.

The previous prime is 151923899. The next prime is 151923931. The reversal of 151923913 is 319329151.

Together with next prime (151923931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88115769 + 63808144 = 9387^2 + 7988^2 .

It is an emirp because it is prime and its reverse (319329151) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151923913 is a prime.

It is not a weakly prime, because it can be changed into another prime (151923313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75961956 + 75961957.

It is an arithmetic number, because the mean of its divisors is an integer number (75961957).

Almost surely, 2^151923913 is an apocalyptic number.

It is an amenable number.

151923913 is a deficient number, since it is larger than the sum of its proper divisors (1).

151923913 is an equidigital number, since it uses as much as digits as its factorization.

151923913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7290, while the sum is 34.

The square root of 151923913 is about 12325.7418843654. The cubic root of 151923913 is about 533.5912663396.

The spelling of 151923913 in words is "one hundred fifty-one million, nine hundred twenty-three thousand, nine hundred thirteen".