1142251875 has 140 divisors (see below), whose sum is σ = 2253591120. Its totient is φ = 577368000.

The previous prime is 1142251853. The next prime is 1142251889. The reversal of 1142251875 is 5781522411.

It is a happy number.

1142251875 is a `hidden beast` number, since 114 + 22 + 518 + 7 + 5 = 666.

It is not a de Polignac number, because 1142251875 - 2⁸ = 1142251619 is a prime.

Its product of digits (22400) is a multiple of the sum of its prime divisors (140).

It is an unprimeable number.

It is a polite number, since it can be written in 139 ways as a sum of consecutive naturals, for example, 10479321 + ... + 10479429.

Almost surely, 2^1142251875 is an apocalyptic number.

1142251875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1142251875 is a deficient number, since it is larger than the sum of its proper divisors (1111339245).

1142251875 is an frugal number, since it uses more digits than its factorization.

1142251875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 140 counting only the distinct ones).

The product of its digits is 22400, while the sum is 36.

The square root of 1142251875 is about 33797.2169712241. The cubic root of 1142251875 is about 1045.3313128791.

The spelling of 1142251875 in words is "one billion, one hundred forty-two million, two hundred fifty-one thousand, eight hundred seventy-five".