1142373551 has 4 divisors (see below), whose sum is σ = 1246225704. Its totient is φ = 1038521400.

The previous prime is 1142373523. The next prime is 1142373553. The reversal of 1142373551 is 1553732411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1142373551 - 2⁶ = 1142373487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142373553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51926060 + ... + 51926081.

It is an arithmetic number, because the mean of its divisors is an integer number (311556426).

Almost surely, 2^1142373551 is an apocalyptic number.

1142373551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1142373551 is a deficient number, since it is larger than the sum of its proper divisors (103852153).

1142373551 is a wasteful number, since it uses less digits than its factorization.

1142373551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103852152.

The product of its digits is 12600, while the sum is 32.

The square root of 1142373551 is about 33799.0170123334. The cubic root of 1142373551 is about 1045.3684288076.

The spelling of 1142373551 in words is "one billion, one hundred forty-two million, three hundred seventy-three thousand, five hundred fifty-one".