151765993 has 2 divisors, whose sum is σ = 151765994. Its totient is φ = 151765992.

The previous prime is 151765967. The next prime is 151766011. The reversal of 151765993 is 399567151.

151765993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125171344 + 26594649 = 11188^2 + 5157^2 .

It is a cyclic number.

It is not a de Polignac number, because 151765993 - 2¹⁷ = 151634921 is a prime.

It is not a weakly prime, because it can be changed into another prime (151765693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75882996 + 75882997.

It is an arithmetic number, because the mean of its divisors is an integer number (75882997).

Almost surely, 2^151765993 is an apocalyptic number.

It is an amenable number.

151765993 is a deficient number, since it is larger than the sum of its proper divisors (1).

151765993 is an equidigital number, since it uses as much as digits as its factorization.

151765993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 255150, while the sum is 46.

The square root of 151765993 is about 12319.3341134982. The cubic root of 151765993 is about 533.4063186141.

The spelling of 151765993 in words is "one hundred fifty-one million, seven hundred sixty-five thousand, nine hundred ninety-three".