723131253 has 16 divisors (see below), whose sum is σ = 1153714240. Its totient is φ = 445003632.

The previous prime is 723131147. The next prime is 723131257. The reversal of 723131253 is 352131327.

It is not a de Polignac number, because 723131253 - 2¹³ = 723123061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723131257) 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, 1029751 + ... + 1030452.

It is an arithmetic number, because the mean of its divisors is an integer number (72107140).

Almost surely, 2^723131253 is an apocalyptic number.

It is an amenable number.

723131253 is a deficient number, since it is larger than the sum of its proper divisors (430582987).

723131253 is a wasteful number, since it uses less digits than its factorization.

723131253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060225 (or 2060219 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 723131253 is about 26891.0998845343. The cubic root of 723131253 is about 897.5783677298.

The spelling of 723131253 in words is "seven hundred twenty-three million, one hundred thirty-one thousand, two hundred fifty-three".