1399464135 has 80 divisors (see below), whose sum is σ = 2620418592. Its totient is φ = 713836800.

The previous prime is 1399464091. The next prime is 1399464137. The reversal of 1399464135 is 5314649931.

It is not a de Polignac number, because 1399464135 - 2¹⁰ = 1399463111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399464137) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 913320 + ... + 914850.

Almost surely, 2^1399464135 is an apocalyptic number.

1399464135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1399464135 is a deficient number, since it is larger than the sum of its proper divisors (1220954457).

1399464135 is a wasteful number, since it uses less digits than its factorization.

1399464135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646 (or 1637 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 1399464135 is about 37409.4123851204. The cubic root of 1399464135 is about 1118.5461938075.

The spelling of 1399464135 in words is "one billion, three hundred ninety-nine million, four hundred sixty-four thousand, one hundred thirty-five".