1260630542 has 4 divisors (see below), whose sum is σ = 1890945816. Its totient is φ = 630315270.

The previous prime is 1260630533. The next prime is 1260630557. The reversal of 1260630542 is 2450360621.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315157634 + ... + 315157637.

It is an arithmetic number, because the mean of its divisors is an integer number (472736454).

Almost surely, 2^1260630542 is an apocalyptic number.

1260630542 is a deficient number, since it is larger than the sum of its proper divisors (630315274).

1260630542 is an equidigital number, since it uses as much as digits as its factorization.

1260630542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630315273.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1260630542 is about 35505.3593419360. The cubic root of 1260630542 is about 1080.2624367950.

The spelling of 1260630542 in words is "one billion, two hundred sixty million, six hundred thirty thousand, five hundred forty-two".