1393641134 has 4 divisors (see below), whose sum is σ = 2090461704. Its totient is φ = 696820566.

The previous prime is 1393641103. The next prime is 1393641169. The reversal of 1393641134 is 4311463931.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1393641134² = 3884471220753611912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1393641094 and 1393641103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348410282 + ... + 348410285.

It is an arithmetic number, because the mean of its divisors is an integer number (522615426).

Almost surely, 2^1393641134 is an apocalyptic number.

1393641134 is a deficient number, since it is larger than the sum of its proper divisors (696820570).

1393641134 is an equidigital number, since it uses as much as digits as its factorization.

1393641134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696820569.

The product of its digits is 23328, while the sum is 35.

The square root of 1393641134 is about 37331.5032378821. The cubic root of 1393641134 is about 1116.9926586458.

The spelling of 1393641134 in words is "one billion, three hundred ninety-three million, six hundred forty-one thousand, one hundred thirty-four".