151645253 has 8 divisors (see below), whose sum is σ = 161167320. Its totient is φ = 142190080.

The previous prime is 151645237. The next prime is 151645259. The reversal of 151645253 is 352546151.

It can be written as a sum of positive squares in 4 ways, for example, as 42797764 + 108847489 = 6542^2 + 10433^2 .

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 151645253 - 2⁴ = 151645237 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 (151645259) 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, 12008 + ... + 21153.

It is an arithmetic number, because the mean of its divisors is an integer number (20145915).

Almost surely, 2^151645253 is an apocalyptic number.

It is an amenable number.

151645253 is a deficient number, since it is larger than the sum of its proper divisors (9522067).

151645253 is a wasteful number, since it uses less digits than its factorization.

151645253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33447.

The product of its digits is 18000, while the sum is 32.

The square root of 151645253 is about 12314.4327112539. The cubic root of 151645253 is about 533.2648276159.

The spelling of 151645253 in words is "one hundred fifty-one million, six hundred forty-five thousand, two hundred fifty-three".