156315390 has 128 divisors (see below), whose sum is σ = 477619200. Its totient is φ = 32457600.

The previous prime is 156315389. The next prime is 156315409. The reversal of 156315390 is 93513651.

156315390 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 112500 + ... + 113880.

It is an arithmetic number, because the mean of its divisors is an integer number (3731400).

Almost surely, 2^156315390 is an apocalyptic number.

156315390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 156315390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238809600).

156315390 is an abundant number, since it is smaller than the sum of its proper divisors (321303810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

156315390 is a wasteful number, since it uses less digits than its factorization.

156315390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423 (or 1409 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 33.

The square root of 156315390 is about 12502.6153264027. The cubic root of 156315390 is about 538.6837972208.

The spelling of 156315390 in words is "one hundred fifty-six million, three hundred fifteen thousand, three hundred ninety".