5131397 has 4 divisors (see below), whose sum is σ = 5184396. Its totient is φ = 5078400.

The previous prime is 5131367. The next prime is 5131417. The reversal of 5131397 is 7931315.

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 4268356 + 863041 = 2066^2 + 929^2 .

It is a cyclic number.

It is not a de Polignac number, because 5131397 - 2⁶ = 5131333 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 (5131307) 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, 26354 + ... + 26547.

It is an arithmetic number, because the mean of its divisors is an integer number (1296099).

Almost surely, 2^5131397 is an apocalyptic number.

It is an amenable number.

5131397 is a deficient number, since it is larger than the sum of its proper divisors (52999).

5131397 is an equidigital number, since it uses as much as digits as its factorization.

5131397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52998.

The product of its digits is 2835, while the sum is 29.

The square root of 5131397 is about 2265.2587048724. The cubic root of 5131397 is about 172.4825663261.

It can be divided in two parts, 51313 and 97, that multiplied together give a square (4977361 = 2231²).

The spelling of 5131397 in words is "five million, one hundred thirty-one thousand, three hundred ninety-seven".