251340941 has 8 divisors (see below), whose sum is σ = 271313280. Its totient is φ = 232122352.

The previous prime is 251340931. The next prime is 251340953. The reversal of 251340941 is 149043152.

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 251340941 - 2⁶ = 251340877 is a prime.

It is a super-3 number, since 3×251340941³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251340931) 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, 187745 + ... + 189078.

It is an arithmetic number, because the mean of its divisors is an integer number (33914160).

Almost surely, 2^251340941 is an apocalyptic number.

It is an amenable number.

251340941 is a deficient number, since it is larger than the sum of its proper divisors (19972339).

251340941 is a wasteful number, since it uses less digits than its factorization.

251340941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376875.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 251340941 is about 15853.7358688733. The cubic root of 251340941 is about 631.0848370172.

The spelling of 251340941 in words is "two hundred fifty-one million, three hundred forty thousand, nine hundred forty-one".