1237423725 has 36 divisors (see below), whose sum is σ = 2225295072. Its totient is φ = 657300000.

The previous prime is 1237423721. The next prime is 1237423729. The reversal of 1237423725 is 5273247321.

It is an interprime number because it is at equal distance from previous prime (1237423721) and next prime (1237423729).

It is not a de Polignac number, because 1237423725 - 2² = 1237423721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1237423725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1237423721) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 45520 + ... + 67430.

It is an arithmetic number, because the mean of its divisors is an integer number (61813752).

Almost surely, 2^1237423725 is an apocalyptic number.

1237423725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1237423725 is a deficient number, since it is larger than the sum of its proper divisors (987871347).

1237423725 is a wasteful number, since it uses less digits than its factorization.

1237423725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22178 (or 22170 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 1237423725 is about 35177.0340563271. The cubic root of 1237423725 is about 1073.5925261566.

The spelling of 1237423725 in words is "one billion, two hundred thirty-seven million, four hundred twenty-three thousand, seven hundred twenty-five".