151091091 has 24 divisors (see below), whose sum is σ = 224809520. Its totient is φ = 97713216.

The previous prime is 151091089. The next prime is 151091099. The reversal of 151091091 is 190190151.

It is not a de Polignac number, because 151091091 - 2¹ = 151091089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151091099) 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 23 ways as a sum of consecutive naturals, for example, 205761 + ... + 206493.

Almost surely, 2^151091091 is an apocalyptic number.

151091091 is a deficient number, since it is larger than the sum of its proper divisors (73718429).

151091091 is a wasteful number, since it uses less digits than its factorization.

151091091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395 (or 1392 counting only the distinct ones).

The product of its (nonzero) digits is 405, while the sum is 27.

The square root of 151091091 is about 12291.9116088589. The cubic root of 151091091 is about 532.6144592942.

The spelling of 151091091 in words is "one hundred fifty-one million, ninety-one thousand, ninety-one".