1142420751 has 12 divisors (see below), whose sum is σ = 1707065880. Its totient is φ = 735351120.

The previous prime is 1142420731. The next prime is 1142420759. The reversal of 1142420751 is 1570242411.

It is not a de Polignac number, because 1142420751 - 2⁶ = 1142420687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142420759) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2188285 + ... + 2188806.

It is an arithmetic number, because the mean of its divisors is an integer number (142255490).

Almost surely, 2^1142420751 is an apocalyptic number.

1142420751 is a deficient number, since it is larger than the sum of its proper divisors (564645129).

1142420751 is a wasteful number, since it uses less digits than its factorization.

1142420751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4377126 (or 4377123 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 1142420751 is about 33799.7152502798. The cubic root of 1142420751 is about 1045.3828259401.

The spelling of 1142420751 in words is "one billion, one hundred forty-two million, four hundred twenty thousand, seven hundred fifty-one".