1225732974 has 64 divisors (see below), whose sum is σ = 2657470464. Its totient is φ = 375905376.

The previous prime is 1225732967. The next prime is 1225733011. The reversal of 1225732974 is 4792375221.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 396037 + ... + 399119.

It is an arithmetic number, because the mean of its divisors is an integer number (41522976).

Almost surely, 2^1225732974 is an apocalyptic number.

1225732974 is an abundant number, since it is smaller than the sum of its proper divisors (1431737490).

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

1225732974 is a wasteful number, since it uses less digits than its factorization.

1225732974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3221.

The product of its digits is 211680, while the sum is 42.

The square root of 1225732974 is about 35010.4694912822. The cubic root of 1225732974 is about 1070.2008456354.

The spelling of 1225732974 in words is "one billion, two hundred twenty-five million, seven hundred thirty-two thousand, nine hundred seventy-four".