251142034 has 24 divisors (see below), whose sum is σ = 445930380. Its totient is φ = 105372960.

The previous prime is 251142029. The next prime is 251142041. The reversal of 251142034 is 430241152.

It can be written as a sum of positive squares in 2 ways, for example, as 245016409 + 6125625 = 15653^2 + 2475^2 .

It is a super-3 number, since 3×251142034³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 251141996 and 251142014.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36769 + ... + 43060.

Almost surely, 2^251142034 is an apocalyptic number.

251142034 is a deficient number, since it is larger than the sum of its proper divisors (194788346).

251142034 is a wasteful number, since it uses less digits than its factorization.

251142034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79866 (or 79855 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 251142034 is about 15847.4614370883. The cubic root of 251142034 is about 630.9183164349.

Adding to 251142034 its reverse (430241152), we get a palindrome (681383186).

The spelling of 251142034 in words is "two hundred fifty-one million, one hundred forty-two thousand, thirty-four".