1240961371 has 4 divisors (see below), whose sum is σ = 1336419952. Its totient is φ = 1145502792.

The previous prime is 1240961363. The next prime is 1240961387. The reversal of 1240961371 is 1731690421.

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

It is a cyclic number.

It is not a de Polignac number, because 1240961371 - 2³ = 1240961363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1240961311) 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, 47729271 + ... + 47729296.

It is an arithmetic number, because the mean of its divisors is an integer number (334104988).

Almost surely, 2^1240961371 is an apocalyptic number.

1240961371 is a deficient number, since it is larger than the sum of its proper divisors (95458581).

1240961371 is an equidigital number, since it uses as much as digits as its factorization.

1240961371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95458580.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 1240961371 is about 35227.2816294417. The cubic root of 1240961371 is about 1074.6146434890.

The spelling of 1240961371 in words is "one billion, two hundred forty million, nine hundred sixty-one thousand, three hundred seventy-one".