402114251 has 16 divisors (see below), whose sum is σ = 508405248. Its totient is φ = 308918400.

The previous prime is 402114247. The next prime is 402114253. The reversal of 402114251 is 152411204.

It is a happy number.

It is not a de Polignac number, because 402114251 - 2² = 402114247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402114253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31310 + ... + 42243.

It is an arithmetic number, because the mean of its divisors is an integer number (31775328).

Almost surely, 2^402114251 is an apocalyptic number.

402114251 is a deficient number, since it is larger than the sum of its proper divisors (106290997).

402114251 is a wasteful number, since it uses less digits than its factorization.

402114251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73642.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 402114251 is about 20052.7866143337. The cubic root of 402114251 is about 738.1021804352.

Adding to 402114251 its reverse (152411204), we get a palindrome (554525455).

The spelling of 402114251 in words is "four hundred two million, one hundred fourteen thousand, two hundred fifty-one".