31301401 has 4 divisors (see below), whose sum is σ = 31328100. Its totient is φ = 31274704.

The previous prime is 31301399. The next prime is 31301419. The reversal of 31301401 is 10410313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28611801 + 2689600 = 5349^2 + 1640^2 .

It is a cyclic number.

It is not a de Polignac number, because 31301401 - 2¹ = 31301399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31304401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11506 + ... + 13963.

It is an arithmetic number, because the mean of its divisors is an integer number (7832025).

Almost surely, 2^31301401 is an apocalyptic number.

It is an amenable number.

31301401 is a deficient number, since it is larger than the sum of its proper divisors (26699).

31301401 is a wasteful number, since it uses less digits than its factorization.

31301401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26698.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 31301401 is about 5594.7655000009. The cubic root of 31301401 is about 315.1528644129.

Adding to 31301401 its reverse (10410313), we get a palindrome (41711714).

The spelling of 31301401 in words is "thirty-one million, three hundred one thousand, four hundred one".