1240952819 has 2 divisors, whose sum is σ = 1240952820. Its totient is φ = 1240952818.

The previous prime is 1240952803. The next prime is 1240952831. The reversal of 1240952819 is 9182590421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1240952819 - 2⁴ = 1240952803 is a prime.

It is a super-2 number, since 2×1240952819² = 3079927797968093522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1240951819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620476409 + 620476410.

It is an arithmetic number, because the mean of its divisors is an integer number (620476410).

Almost surely, 2^1240952819 is an apocalyptic number.

1240952819 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240952819 is an equidigital number, since it uses as much as digits as its factorization.

1240952819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 1240952819 is about 35227.1602460374. The cubic root of 1240952819 is about 1074.6121749390.

The spelling of 1240952819 in words is "one billion, two hundred forty million, nine hundred fifty-two thousand, eight hundred nineteen".