1242677351 has 2 divisors, whose sum is σ = 1242677352. Its totient is φ = 1242677350.

The previous prime is 1242677329. The next prime is 1242677369. The reversal of 1242677351 is 1537762421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1242677351 - 2¹⁴ = 1242660967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1242677251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621338675 + 621338676.

It is an arithmetic number, because the mean of its divisors is an integer number (621338676).

Almost surely, 2^1242677351 is an apocalyptic number.

1242677351 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242677351 is an equidigital number, since it uses as much as digits as its factorization.

1242677351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 38.

The square root of 1242677351 is about 35251.6290545558. The cubic root of 1242677351 is about 1075.1097348950.

The spelling of 1242677351 in words is "one billion, two hundred forty-two million, six hundred seventy-seven thousand, three hundred fifty-one".