151199999 has 4 divisors (see below), whose sum is σ = 157773936. Its totient is φ = 144626064.

The previous prime is 151199981. The next prime is 151200031. The reversal of 151199999 is 999991151.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 151199999 - 2⁸ = 151199743 is a prime.

It is a super-2 number, since 2×151199999² = 45722879395200002, which contains 22 as substring.

It is a Duffinian number.

151199999 is a modest number, since divided by 99999 gives 1511 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 151199999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151199969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3286934 + ... + 3286979.

It is an arithmetic number, because the mean of its divisors is an integer number (39443484).

Almost surely, 2^151199999 is an apocalyptic number.

151199999 is a deficient number, since it is larger than the sum of its proper divisors (6573937).

151199999 is an equidigital number, since it uses as much as digits as its factorization.

151199999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6573936.

The product of its digits is 295245, while the sum is 53.

The square root of 151199999 is about 12296.3408784890. The cubic root of 151199999 is about 532.7423998711.

The spelling of 151199999 in words is "one hundred fifty-one million, one hundred ninety-nine thousand, nine hundred ninety-nine".