151677891 has 12 divisors (see below), whose sum is σ = 223224768. Its totient is φ = 99210384.

The previous prime is 151677881. The next prime is 151677937. The reversal of 151677891 is 198776151.

It is not a de Polignac number, because 151677891 - 2¹⁷ = 151546819 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (151677871) 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 11 ways as a sum of consecutive naturals, for example, 158515 + ... + 159468.

It is an arithmetic number, because the mean of its divisors is an integer number (18602064).

Almost surely, 2^151677891 is an apocalyptic number.

151677891 is a deficient number, since it is larger than the sum of its proper divisors (71546877).

151677891 is a wasteful number, since it uses less digits than its factorization.

151677891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318042 (or 318039 counting only the distinct ones).

The product of its digits is 105840, while the sum is 45.

The square root of 151677891 is about 12315.7578329553. The cubic root of 151677891 is about 533.3030823554.

The spelling of 151677891 in words is "one hundred fifty-one million, six hundred seventy-seven thousand, eight hundred ninety-one".