151612985 has 4 divisors (see below), whose sum is σ = 181935588. Its totient is φ = 121290384.

The previous prime is 151612963. The next prime is 151612991. The reversal of 151612985 is 589216151.

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

It can be written as a sum of positive squares in 2 ways, for example, as 119486761 + 32126224 = 10931^2 + 5668^2 .

It is a cyclic number.

It is not a de Polignac number, because 151612985 - 2⁶ = 151612921 is a prime.

It is a super-2 number, since 2×151612985² = 45972994441220450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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, 15161294 + ... + 15161303.

It is an arithmetic number, because the mean of its divisors is an integer number (45483897).

Almost surely, 2^151612985 is an apocalyptic number.

It is an amenable number.

151612985 is a deficient number, since it is larger than the sum of its proper divisors (30322603).

151612985 is an equidigital number, since it uses as much as digits as its factorization.

151612985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30322602.

The product of its digits is 21600, while the sum is 38.

The square root of 151612985 is about 12313.1224715748. The cubic root of 151612985 is about 533.2270011541.

The spelling of 151612985 in words is "one hundred fifty-one million, six hundred twelve thousand, nine hundred eighty-five".