151530193 has 2 divisors, whose sum is σ = 151530194. Its totient is φ = 151530192.

The previous prime is 151530157. The next prime is 151530217. The reversal of 151530193 is 391035151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139641489 + 11888704 = 11817^2 + 3448^2 .

It is a cyclic number.

It is not a de Polignac number, because 151530193 - 2¹³ = 151522001 is a prime.

It is a super-2 number, since 2×151530193² = 45922798781234498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (151530493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75765096 + 75765097.

It is an arithmetic number, because the mean of its divisors is an integer number (75765097).

Almost surely, 2^151530193 is an apocalyptic number.

It is an amenable number.

151530193 is a deficient number, since it is larger than the sum of its proper divisors (1).

151530193 is an equidigital number, since it uses as much as digits as its factorization.

151530193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2025, while the sum is 28.

The square root of 151530193 is about 12309.7600707731. The cubic root of 151530193 is about 533.1299229077.

The spelling of 151530193 in words is "one hundred fifty-one million, five hundred thirty thousand, one hundred ninety-three".