1395952269 has 4 divisors (see below), whose sum is σ = 1861269696. Its totient is φ = 930634844.

The previous prime is 1395952241. The next prime is 1395952277. The reversal of 1395952269 is 9622595931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1395952269 - 2⁵ = 1395952237 is a prime.

It is a super-2 number, since 2×1395952269² = 3897365474652496722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1395952669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232658709 + ... + 232658714.

It is an arithmetic number, because the mean of its divisors is an integer number (465317424).

Almost surely, 2^1395952269 is an apocalyptic number.

It is an amenable number.

1395952269 is a deficient number, since it is larger than the sum of its proper divisors (465317427).

1395952269 is an equidigital number, since it uses as much as digits as its factorization.

1395952269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465317426.

The product of its digits is 1312200, while the sum is 51.

The square root of 1395952269 is about 37362.4446336157. Note that the first 3 decimals coincide. The cubic root of 1395952269 is about 1117.6097699578.

The spelling of 1395952269 in words is "one billion, three hundred ninety-five million, nine hundred fifty-two thousand, two hundred sixty-nine".