2151497253 has 8 divisors (see below), whose sum is σ = 2897066016. Its totient is φ = 1420130000.

The previous prime is 2151497251. The next prime is 2151497273. The reversal of 2151497253 is 3527941512.

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 2151497253 - 2¹ = 2151497251 is a prime.

It is a super-3 number, since 3×2151497253³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151497251) 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, 3550023 + ... + 3550628.

It is an arithmetic number, because the mean of its divisors is an integer number (362133252).

Almost surely, 2^2151497253 is an apocalyptic number.

It is an amenable number.

2151497253 is a deficient number, since it is larger than the sum of its proper divisors (745568763).

2151497253 is a wasteful number, since it uses less digits than its factorization.

2151497253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7100755.

The product of its digits is 75600, while the sum is 39.

The square root of 2151497253 is about 46384.2349618920. The cubic root of 2151497253 is about 1290.9624156290.

The spelling of 2151497253 in words is "two billion, one hundred fifty-one million, four hundred ninety-seven thousand, two hundred fifty-three".