202152493 has 4 divisors (see below), whose sum is σ = 202345888. Its totient is φ = 201959100.

The previous prime is 202152463. The next prime is 202152529. The reversal of 202152493 is 394251202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 202152493 - 2²¹ = 200055341 is a prime.

It is a super-2 number, since 2×202152493² = 81731260852230098, which contains 22 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 (202152443) 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, 95121 + ... + 97222.

It is an arithmetic number, because the mean of its divisors is an integer number (50586472).

Almost surely, 2^202152493 is an apocalyptic number.

It is an amenable number.

202152493 is a deficient number, since it is larger than the sum of its proper divisors (193395).

202152493 is a wasteful number, since it uses less digits than its factorization.

202152493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193394.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 202152493 is about 14218.0340764819. The cubic root of 202152493 is about 586.8940417644.

The spelling of 202152493 in words is "two hundred two million, one hundred fifty-two thousand, four hundred ninety-three".