1240314945 has 16 divisors (see below), whose sum is σ = 1984945920. Its totient is φ = 661353984.

The previous prime is 1240314941. The next prime is 1240314953. The reversal of 1240314945 is 5494130421.

It is not a de Polignac number, because 1240314945 - 2² = 1240314941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1240314941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111057 + ... + 121713.

It is an arithmetic number, because the mean of its divisors is an integer number (124059120).

Almost surely, 2^1240314945 is an apocalyptic number.

1240314945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1240314945 is a deficient number, since it is larger than the sum of its proper divisors (744630975).

1240314945 is a wasteful number, since it uses less digits than its factorization.

1240314945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18424.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 1240314945 is about 35218.1053578979. The cubic root of 1240314945 is about 1074.4280194961.

The spelling of 1240314945 in words is "one billion, two hundred forty million, three hundred fourteen thousand, nine hundred forty-five".