151922091 has 4 divisors (see below), whose sum is σ = 202562792. Its totient is φ = 101281392.

The previous prime is 151922087. The next prime is 151922101. The reversal of 151922091 is 190229151.

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

It is not a de Polignac number, because 151922091 - 2² = 151922087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151922051) 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, 25320346 + ... + 25320351.

It is an arithmetic number, because the mean of its divisors is an integer number (50640698).

Almost surely, 2^151922091 is an apocalyptic number.

151922091 is a deficient number, since it is larger than the sum of its proper divisors (50640701).

151922091 is an equidigital number, since it uses as much as digits as its factorization.

151922091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50640700.

The product of its (nonzero) digits is 1620, while the sum is 30.

The square root of 151922091 is about 12325.6679737854. The cubic root of 151922091 is about 533.5891332386.

The spelling of 151922091 in words is "one hundred fifty-one million, nine hundred twenty-two thousand, ninety-one".