1142464251 has 16 divisors (see below), whose sum is σ = 1581703200. Its totient is φ = 732630528.

The previous prime is 1142464247. The next prime is 1142464289. The reversal of 1142464251 is 1524642411.

1142464251 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1142464251 - 2² = 1142464247 is a prime.

It is a super-4 number, since 4×1142464251⁴ (a number of 37 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (1142464241) 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, 1006 + ... + 47811.

It is an arithmetic number, because the mean of its divisors is an integer number (98856450).

Almost surely, 2^1142464251 is an apocalyptic number.

1142464251 is a deficient number, since it is larger than the sum of its proper divisors (439238949).

1142464251 is a wasteful number, since it uses less digits than its factorization.

1142464251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49118.

The product of its digits is 7680, while the sum is 30.

The square root of 1142464251 is about 33800.3587406998. The cubic root of 1142464251 is about 1045.3960941327.

The spelling of 1142464251 in words is "one billion, one hundred forty-two million, four hundred sixty-four thousand, two hundred fifty-one".