151192993 has 4 divisors (see below), whose sum is σ = 172792000. Its totient is φ = 129593988.

The previous prime is 151192957. The next prime is 151192999. The reversal of 151192993 is 399291151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 151192993 - 2¹⁷ = 151061921 is a prime.

It is a super-2 number, since 2×151192993² = 45718642264596098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151192999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10799493 + ... + 10799506.

It is an arithmetic number, because the mean of its divisors is an integer number (43198000).

Almost surely, 2^151192993 is an apocalyptic number.

It is an amenable number.

151192993 is a deficient number, since it is larger than the sum of its proper divisors (21599007).

151192993 is an equidigital number, since it uses as much as digits as its factorization.

151192993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21599006.

The product of its digits is 21870, while the sum is 40.

The square root of 151192993 is about 12296.0559936916. The cubic root of 151192993 is about 532.7341713637.

The spelling of 151192993 in words is "one hundred fifty-one million, one hundred ninety-two thousand, nine hundred ninety-three".