1240961542 has 4 divisors (see below), whose sum is σ = 1861442316. Its totient is φ = 620480770.

The previous prime is 1240961531. The next prime is 1240961609. The reversal of 1240961542 is 2451690421.

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

It is a junction number, because it is equal to n+sod(n) for n = 1240961498 and 1240961507.

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, 310240384 + ... + 310240387.

It is an arithmetic number, because the mean of its divisors is an integer number (465360579).

Almost surely, 2^1240961542 is an apocalyptic number.

1240961542 is a deficient number, since it is larger than the sum of its proper divisors (620480774).

1240961542 is an equidigital number, since it uses as much as digits as its factorization.

1240961542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620480773.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 1240961542 is about 35227.2840565378. The cubic root of 1240961542 is about 1074.6146928483.

The spelling of 1240961542 in words is "one billion, two hundred forty million, nine hundred sixty-one thousand, five hundred forty-two".