202081497 has 8 divisors (see below), whose sum is σ = 276013920. Its totient is φ = 131435040.

The previous prime is 202081489. The next prime is 202081501. The reversal of 202081497 is 794180202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 202081497 - 2³ = 202081489 is a prime.

It is a super-2 number, since 2×202081497² = 81673862859522018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (202081597) 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, 821347 + ... + 821592.

It is an arithmetic number, because the mean of its divisors is an integer number (34501740).

Almost surely, 2^202081497 is an apocalyptic number.

It is an amenable number.

202081497 is a deficient number, since it is larger than the sum of its proper divisors (73932423).

202081497 is a wasteful number, since it uses less digits than its factorization.

202081497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642983.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 202081497 is about 14215.5371688867. The cubic root of 202081497 is about 586.8253279475.

The spelling of 202081497 in words is "two hundred two million, eighty-one thousand, four hundred ninety-seven".