251226210141 has 6 divisors (see below), whose sum is σ = 362882303550. Its totient is φ = 167484140088.

The previous prime is 251226210097. The next prime is 251226210163. The reversal of 251226210141 is 141012622152.

It is a happy number.

251226210141 is a `hidden beast` number, since 2 + 5 + 1 + 22 + 621 + 0 + 14 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 222604676100 + 28621534041 = 471810^2 + 169179^2 .

It is not a de Polignac number, because 251226210141 - 2³¹ = 249078726493 is a prime.

It is a super-2 number, since 2×251226210141² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251226210541) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13957011666 + ... + 13957011683.

It is an arithmetic number, because the mean of its divisors is an integer number (60480383925).

Almost surely, 2^251226210141 is an apocalyptic number.

It is an amenable number.

251226210141 is a deficient number, since it is larger than the sum of its proper divisors (111656093409).

251226210141 is a wasteful number, since it uses less digits than its factorization.

251226210141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27914023355 (or 27914023352 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

Adding to 251226210141 its reverse (141012622152), we get a palindrome (392238832293).

The spelling of 251226210141 in words is "two hundred fifty-one billion, two hundred twenty-six million, two hundred ten thousand, one hundred forty-one".