1542280797 has 8 divisors (see below), whose sum is σ = 2284860480. Its totient is φ = 1028187180.

The previous prime is 1542280793. The next prime is 1542280811. The reversal of 1542280797 is 7970822451.

It is a happy number.

It is not a de Polignac number, because 1542280797 - 2² = 1542280793 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1542280793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28560729 + ... + 28560782.

It is an arithmetic number, because the mean of its divisors is an integer number (285607560).

Almost surely, 2^1542280797 is an apocalyptic number.

It is an amenable number.

1542280797 is a deficient number, since it is larger than the sum of its proper divisors (742579683).

1542280797 is an equidigital number, since it uses as much as digits as its factorization.

1542280797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57121520 (or 57121514 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 1542280797 is about 39271.8830335394. The cubic root of 1542280797 is about 1155.3701697633.

The spelling of 1542280797 in words is "one billion, five hundred forty-two million, two hundred eighty thousand, seven hundred ninety-seven".