151245251 has 4 divisors (see below), whose sum is σ = 151820592. Its totient is φ = 150669912.

The previous prime is 151245223. The next prime is 151245257. The reversal of 151245251 is 152542151.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151245251 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 151245251.

It is not an unprimeable number, because it can be changed into a prime (151245257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287276 + ... + 287801.

It is an arithmetic number, because the mean of its divisors is an integer number (37955148).

Almost surely, 2^151245251 is an apocalyptic number.

151245251 is a deficient number, since it is larger than the sum of its proper divisors (575341).

151245251 is an equidigital number, since it uses as much as digits as its factorization.

151245251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575340.

The product of its digits is 2000, while the sum is 26.

The square root of 151245251 is about 12298.1808004274. The cubic root of 151245251 is about 532.7955419668.

The spelling of 151245251 in words is "one hundred fifty-one million, two hundred forty-five thousand, two hundred fifty-one".