249790101 has 28 divisors (see below), whose sum is σ = 374153664. Its totient is φ = 148166920.

The previous prime is 249790091. The next prime is 249790117. The reversal of 249790101 is 101097942.

It is not a de Polignac number, because 249790101 - 2¹⁰ = 249789077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249790001) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 5314660 + ... + 5314706.

Almost surely, 2^249790101 is an apocalyptic number.

It is an amenable number.

249790101 is a deficient number, since it is larger than the sum of its proper divisors (124363563).

249790101 is an frugal number, since it uses more digits than its factorization.

249790101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 61 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 249790101 is about 15804.7493178475. The cubic root of 249790101 is about 629.7841714707.

The spelling of 249790101 in words is "two hundred forty-nine million, seven hundred ninety thousand, one hundred one".