1354972739 has 2 divisors, whose sum is σ = 1354972740. Its totient is φ = 1354972738.

The previous prime is 1354972721. The next prime is 1354972763. The reversal of 1354972739 is 9372794531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1354972739 - 2⁸ = 1354972483 is a prime.

It is a super-2 number, since 2×1354972739² = 3671902246866324242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1354972789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677486369 + 677486370.

It is an arithmetic number, because the mean of its divisors is an integer number (677486370).

Almost surely, 2^1354972739 is an apocalyptic number.

1354972739 is a deficient number, since it is larger than the sum of its proper divisors (1).

1354972739 is an equidigital number, since it uses as much as digits as its factorization.

1354972739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1428840, while the sum is 50.

The square root of 1354972739 is about 36809.9543466166. The cubic root of 1354972739 is about 1106.5648036213.

The spelling of 1354972739 in words is "one billion, three hundred fifty-four million, nine hundred seventy-two thousand, seven hundred thirty-nine".