151864861 has 8 divisors (see below), whose sum is σ = 155744064. Its totient is φ = 147994080.

The previous prime is 151864831. The next prime is 151864871. The reversal of 151864861 is 168468151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 151864861 - 2⁵ = 151864829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151864831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51160 + ... + 54046.

It is an arithmetic number, because the mean of its divisors is an integer number (19468008).

Almost surely, 2^151864861 is an apocalyptic number.

It is an amenable number.

151864861 is a deficient number, since it is larger than the sum of its proper divisors (3879203).

151864861 is a wasteful number, since it uses less digits than its factorization.

151864861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4211.

The product of its digits is 46080, while the sum is 40.

The square root of 151864861 is about 12323.3461770738. The cubic root of 151864861 is about 533.5221227044.

The spelling of 151864861 in words is "one hundred fifty-one million, eight hundred sixty-four thousand, eight hundred sixty-one".