151030993 has 2 divisors, whose sum is σ = 151030994. Its totient is φ = 151030992.

The previous prime is 151030963. The next prime is 151031011. The reversal of 151030993 is 399030151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147671104 + 3359889 = 12152^2 + 1833^2 .

It is a cyclic number.

It is not a de Polignac number, because 151030993 - 2⁵ = 151030961 is a prime.

It is not a weakly prime, because it can be changed into another prime (151030963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75515496 + 75515497.

It is an arithmetic number, because the mean of its divisors is an integer number (75515497).

Almost surely, 2^151030993 is an apocalyptic number.

It is an amenable number.

151030993 is a deficient number, since it is larger than the sum of its proper divisors (1).

151030993 is an equidigital number, since it uses as much as digits as its factorization.

151030993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3645, while the sum is 31.

The square root of 151030993 is about 12289.4667500262. The cubic root of 151030993 is about 532.5438323445.

The spelling of 151030993 in words is "one hundred fifty-one million, thirty thousand, nine hundred ninety-three".