1225024137 has 24 divisors (see below), whose sum is σ = 1848345408. Its totient is φ = 780357600.

The previous prime is 1225024133. The next prime is 1225024147. The reversal of 1225024137 is 7314205221.

1225024137 is a `hidden beast` number, since 1 + 22 + 502 + 4 + 137 = 666.

It is not a de Polignac number, because 1225024137 - 2² = 1225024133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1225024137.

It is not an unprimeable number, because it can be changed into a prime (1225024133) 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, 241962 + ... + 246972.

It is an arithmetic number, because the mean of its divisors is an integer number (77014392).

Almost surely, 2^1225024137 is an apocalyptic number.

It is an amenable number.

1225024137 is a deficient number, since it is larger than the sum of its proper divisors (623321271).

1225024137 is a wasteful number, since it uses less digits than its factorization.

1225024137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6221 (or 6218 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 1225024137 is about 35000.3448125872. The cubic root of 1225024137 is about 1069.9945080802.

Adding to 1225024137 its reverse (7314205221), we get a palindrome (8539229358).

The spelling of 1225024137 in words is "one billion, two hundred twenty-five million, twenty-four thousand, one hundred thirty-seven".