31461425 has 6 divisors (see below), whose sum is σ = 39012198. Its totient is φ = 25169120.

The previous prime is 31461413. The next prime is 31461427. The reversal of 31461425 is 52416413.

It can be written as a sum of positive squares in 3 ways, for example, as 179776 + 31281649 = 424^2 + 5593^2 .

It is not a de Polignac number, because 31461425 - 2⁶ = 31461361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31461394 and 31461403.

It is not an unprimeable number, because it can be changed into a prime (31461427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 629204 + ... + 629253.

It is an arithmetic number, because the mean of its divisors is an integer number (6502033).

Almost surely, 2^31461425 is an apocalyptic number.

It is an amenable number.

31461425 is a deficient number, since it is larger than the sum of its proper divisors (7550773).

31461425 is a wasteful number, since it uses less digits than its factorization.

31461425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258467 (or 1258462 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 31461425 is about 5609.0484932830. The cubic root of 31461425 is about 315.6890099892.

Adding to 31461425 its reverse (52416413), we get a palindrome (83877838).

The spelling of 31461425 in words is "thirty-one million, four hundred sixty-one thousand, four hundred twenty-five".