1370252399 has 2 divisors, whose sum is σ = 1370252400. Its totient is φ = 1370252398.

The previous prime is 1370252371. The next prime is 1370252417. The reversal of 1370252399 is 9932520731.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1370252399 - 2¹⁶ = 1370186863 is a prime.

It is a super-3 number, since 3×1370252399³ (a number of 28 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1375252399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 685126199 + 685126200.

It is an arithmetic number, because the mean of its divisors is an integer number (685126200).

Almost surely, 2^1370252399 is an apocalyptic number.

1370252399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1370252399 is an equidigital number, since it uses as much as digits as its factorization.

1370252399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102060, while the sum is 41.

The square root of 1370252399 is about 37016.9204418736. The cubic root of 1370252399 is about 1110.7087427781.

The spelling of 1370252399 in words is "one billion, three hundred seventy million, two hundred fifty-two thousand, three hundred ninety-nine".