31454661 has 8 divisors (see below), whose sum is σ = 47930944. Its totient is φ = 17974080.

The previous prime is 31454653. The next prime is 31454669. The reversal of 31454661 is 16645413.

It is an interprime number because it is at equal distance from previous prime (31454653) and next prime (31454669).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31454661 - 2³ = 31454653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31454669) 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, 748900 + ... + 748941.

It is an arithmetic number, because the mean of its divisors is an integer number (5991368).

Almost surely, 2^31454661 is an apocalyptic number.

It is an amenable number.

31454661 is a deficient number, since it is larger than the sum of its proper divisors (16476283).

31454661 is a wasteful number, since it uses less digits than its factorization.

31454661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497851.

The product of its digits is 8640, while the sum is 30.

The square root of 31454661 is about 5608.4455065553. The cubic root of 31454661 is about 315.6663846790. Note that the first 3 decimals are identical.

The spelling of 31454661 in words is "thirty-one million, four hundred fifty-four thousand, six hundred sixty-one".