747124245 has 144 divisors (see below), whose sum is σ = 1632159360. Its totient is φ = 309270528.

The previous prime is 747124243. The next prime is 747124283. The reversal of 747124245 is 542421747.

It is not a de Polignac number, because 747124245 - 2¹ = 747124243 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747124241) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2639874 + ... + 2640156.

It is an arithmetic number, because the mean of its divisors is an integer number (11334440).

Almost surely, 2^747124245 is an apocalyptic number.

It is an amenable number.

747124245 is an abundant number, since it is smaller than the sum of its proper divisors (885035115).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

747124245 is a wasteful number, since it uses less digits than its factorization.

747124245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 344 counting only the distinct ones).

The product of its digits is 62720, while the sum is 36.

The square root of 747124245 is about 27333.5735863425. The cubic root of 747124245 is about 907.3975660172.

The spelling of 747124245 in words is "seven hundred forty-seven million, one hundred twenty-four thousand, two hundred forty-five".