2902157287 has 4 divisors (see below), whose sum is σ = 2995775296. Its totient is φ = 2808539280.

The previous prime is 2902157249. The next prime is 2902157317. The reversal of 2902157287 is 7827512092.

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-2902157287 is a prime.

It is a super-3 number, since 3×2902157287³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2902157207) 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, 46808958 + ... + 46809019.

It is an arithmetic number, because the mean of its divisors is an integer number (748943824).

Almost surely, 2^2902157287 is an apocalyptic number.

2902157287 is a deficient number, since it is larger than the sum of its proper divisors (93618009).

2902157287 is an equidigital number, since it uses as much as digits as its factorization.

2902157287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93618008.

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 2902157287 is about 53871.6742546582. The cubic root of 2902157287 is about 1426.3966668924.

The spelling of 2902157287 in words is "two billion, nine hundred two million, one hundred fifty-seven thousand, two hundred eighty-seven".