249354157 has 8 divisors (see below), whose sum is σ = 282668960. Its totient is φ = 218058480.

The previous prime is 249354143. The next prime is 249354167. The reversal of 249354157 is 751453942.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 249354157 - 2¹¹ = 249352109 is a prime.

It is a super-2 number, since 2×249354157² = 124354991226361298, 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 (249354167) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 504519 + ... + 505012.

It is an arithmetic number, because the mean of its divisors is an integer number (35333620).

Almost surely, 2^249354157 is an apocalyptic number.

It is an amenable number.

249354157 is a deficient number, since it is larger than the sum of its proper divisors (33314803).

249354157 is a wasteful number, since it uses less digits than its factorization.

249354157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009563.

The product of its digits is 151200, while the sum is 40.

The square root of 249354157 is about 15790.9517445910. The cubic root of 249354157 is about 629.4175830113.

It can be divided in two parts, 24935 and 4157, that added together give a palindrome (29092).

The spelling of 249354157 in words is "two hundred forty-nine million, three hundred fifty-four thousand, one hundred fifty-seven".