249534902 has 4 divisors (see below), whose sum is σ = 374302356. Its totient is φ = 124767450.

The previous prime is 249534871. The next prime is 249534941. The reversal of 249534902 is 209435942.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×249534902² = 124535334632299208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62383724 + ... + 62383727.

It is an arithmetic number, because the mean of its divisors is an integer number (93575589).

Almost surely, 2^249534902 is an apocalyptic number.

249534902 is a deficient number, since it is larger than the sum of its proper divisors (124767454).

249534902 is a wasteful number, since it uses less digits than its factorization.

249534902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124767453.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 249534902 is about 15796.6737638023. The cubic root of 249534902 is about 629.5696245975.

The spelling of 249534902 in words is "two hundred forty-nine million, five hundred thirty-four thousand, nine hundred two".