1173723425 has 24 divisors (see below), whose sum is σ = 1694730816. Its totient is φ = 789647040.

The previous prime is 1173723407. The next prime is 1173723427. The reversal of 1173723425 is 5243273711.

It is a happy number.

It is not a de Polignac number, because 1173723425 - 2¹⁸ = 1173461281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1173723427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53999 + ... + 72548.

It is an arithmetic number, because the mean of its divisors is an integer number (70613784).

Almost surely, 2^1173723425 is an apocalyptic number.

It is an amenable number.

1173723425 is a deficient number, since it is larger than the sum of its proper divisors (521007391).

1173723425 is a wasteful number, since it uses less digits than its factorization.

1173723425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126617 (or 126612 counting only the distinct ones).

The product of its digits is 35280, while the sum is 35.

The square root of 1173723425 is about 34259.6471814874. The cubic root of 1173723425 is about 1054.8448593777.

The spelling of 1173723425 in words is "one billion, one hundred seventy-three million, seven hundred twenty-three thousand, four hundred twenty-five".