3157245 has 64 divisors (see below), whose sum is σ = 6935040. Its totient is φ = 1327104.

The previous prime is 3157243. The next prime is 3157277. The reversal of 3157245 is 5427513.

It is a happy number.

3157245 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3157245 - 2¹ = 3157243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

3157245 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3157243) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12157 + ... + 12413.

It is an arithmetic number, because the mean of its divisors is an integer number (108360).

Almost surely, 2^3157245 is an apocalyptic number.

3157245 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3157245 is an abundant number, since it is smaller than the sum of its proper divisors (3777795).

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

3157245 is a wasteful number, since it uses less digits than its factorization.

3157245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291 (or 285 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 3157245 is about 1776.8638102004. The cubic root of 3157245 is about 146.7020202883.

The spelling of 3157245 in words is "three million, one hundred fifty-seven thousand, two hundred forty-five".