1240214147 has 2 divisors, whose sum is σ = 1240214148. Its totient is φ = 1240214146.

The previous prime is 1240214123. The next prime is 1240214177. The reversal of 1240214147 is 7414120421.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1240214147 is a prime.

It is a super-2 number, since 2×1240214147² = 3076262260837875218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1240214177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620107073 + 620107074.

It is an arithmetic number, because the mean of its divisors is an integer number (620107074).

Almost surely, 2^1240214147 is an apocalyptic number.

1240214147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240214147 is an equidigital number, since it uses as much as digits as its factorization.

1240214147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 1240214147 is about 35216.6742751214. The cubic root of 1240214147 is about 1074.3989131443.

Adding to 1240214147 its reverse (7414120421), we get a palindrome (8654334568).

The spelling of 1240214147 in words is "one billion, two hundred forty million, two hundred fourteen thousand, one hundred forty-seven".