151440251 has 8 divisors (see below), whose sum is σ = 154919424. Its totient is φ = 147971880.

The previous prime is 151440217. The next prime is 151440253. The reversal of 151440251 is 152044151.

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 151440251 - 2⁶ = 151440187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151440253) 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, 30146 + ... + 34808.

It is an arithmetic number, because the mean of its divisors is an integer number (19364928).

Almost surely, 2^151440251 is an apocalyptic number.

151440251 is a deficient number, since it is larger than the sum of its proper divisors (3479173).

151440251 is an equidigital number, since it uses as much as digits as its factorization.

151440251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5401.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 151440251 is about 12306.1062485256. The cubic root of 151440251 is about 533.0244208052.

The spelling of 151440251 in words is "one hundred fifty-one million, four hundred forty thousand, two hundred fifty-one".