13156390 has 16 divisors (see below), whose sum is σ = 25503408. Its totient is φ = 4857696.

The previous prime is 13156357. The next prime is 13156397. The reversal of 13156390 is 9365131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13156397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50472 + ... + 50731.

It is an arithmetic number, because the mean of its divisors is an integer number (1593963).

Almost surely, 2^13156390 is an apocalyptic number.

13156390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13156390 is a deficient number, since it is larger than the sum of its proper divisors (12347018).

13156390 is a wasteful number, since it uses less digits than its factorization.

13156390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101223.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 13156390 is about 3627.1738309599. The cubic root of 13156390 is about 236.0725980808.

The spelling of 13156390 in words is "thirteen million, one hundred fifty-six thousand, three hundred ninety".