1142980951 has 4 divisors (see below), whose sum is σ = 1306263952. Its totient is φ = 979697952.

The previous prime is 1142980913. The next prime is 1142980961. The reversal of 1142980951 is 1590892411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1590892411 = 29 ⋅54858359.

It is a cyclic number.

It is not a de Polignac number, because 1142980951 - 2⁹ = 1142980439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142980901) 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, 81641490 + ... + 81641503.

It is an arithmetic number, because the mean of its divisors is an integer number (326565988).

Almost surely, 2^1142980951 is an apocalyptic number.

1142980951 is a deficient number, since it is larger than the sum of its proper divisors (163283001).

1142980951 is an equidigital number, since it uses as much as digits as its factorization.

1142980951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163283000.

The product of its (nonzero) digits is 25920, while the sum is 40.

The square root of 1142980951 is about 33808.0012866777. The cubic root of 1142980951 is about 1045.5536701065.

The spelling of 1142980951 in words is "one billion, one hundred forty-two million, nine hundred eighty thousand, nine hundred fifty-one".