1142612091 has 24 divisors (see below), whose sum is σ = 1671205536. Its totient is φ = 752198400.

The previous prime is 1142612071. The next prime is 1142612111. The reversal of 1142612091 is 1902162411.

1142612091 is a `hidden beast` number, since 1 + 1 + 42 + 612 + 0 + 9 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1142612071) and next prime (1142612111).

It is not a de Polignac number, because 1142612091 - 2⁶ = 1142612027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1142612021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 392146 + ... + 395048.

It is an arithmetic number, because the mean of its divisors is an integer number (69633564).

Almost surely, 2^1142612091 is an apocalyptic number.

1142612091 is a deficient number, since it is larger than the sum of its proper divisors (528593445).

1142612091 is a wasteful number, since it uses less digits than its factorization.

1142612091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3443 (or 3440 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1142612091 is about 33802.5456289907. The cubic root of 1142612091 is about 1045.4411851695.

The spelling of 1142612091 in words is "one billion, one hundred forty-two million, six hundred twelve thousand, ninety-one".