151087861 has 4 divisors (see below), whose sum is σ = 151164000. Its totient is φ = 151011724.

The previous prime is 151087817. The next prime is 151087873. The reversal of 151087861 is 168780151.

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 151087861 - 2⁷ = 151087733 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 151087861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151087061) 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, 35011 + ... + 39088.

It is an arithmetic number, because the mean of its divisors is an integer number (37791000).

Almost surely, 2^151087861 is an apocalyptic number.

It is an amenable number.

151087861 is a deficient number, since it is larger than the sum of its proper divisors (76139).

151087861 is an equidigital number, since it uses as much as digits as its factorization.

151087861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76138.

The product of its (nonzero) digits is 13440, while the sum is 37.

The square root of 151087861 is about 12291.7802209444. The cubic root of 151087861 is about 532.6106638863.

The spelling of 151087861 in words is "one hundred fifty-one million, eighty-seven thousand, eight hundred sixty-one".