3142491 has 16 divisors (see below), whose sum is σ = 4614528. Its totient is φ = 1902120.

The previous prime is 3142487. The next prime is 3142493. The reversal of 3142491 is 1942413.

It is not a de Polignac number, because 3142491 - 2² = 3142487 is a prime.

It is an Ulam number.

3142491 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3142493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3600 + ... + 4386.

It is an arithmetic number, because the mean of its divisors is an integer number (288408).

Almost surely, 2^3142491 is an apocalyptic number.

3142491 is a deficient number, since it is larger than the sum of its proper divisors (1472037).

3142491 is an equidigital number, since it uses as much as digits as its factorization.

3142491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823 (or 801 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 3142491 is about 1772.7072516352. The cubic root of 3142491 is about 146.4731475516.

The spelling of 3142491 in words is "three million, one hundred forty-two thousand, four hundred ninety-one".