1225154874 has 16 divisors (see below), whose sum is σ = 2450786112. Its totient is φ = 408305568.

The previous prime is 1225154873. The next prime is 1225154893. The reversal of 1225154874 is 4784515221.

It is not an unprimeable number, because it can be changed into a prime (1225154873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19627 + ... + 53249.

It is an arithmetic number, because the mean of its divisors is an integer number (153174132).

Almost surely, 2^1225154874 is an apocalyptic number.

1225154874 is an abundant number, since it is smaller than the sum of its proper divisors (1225631238).

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

1225154874 is a wasteful number, since it uses less digits than its factorization.

1225154874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39701.

The product of its digits is 89600, while the sum is 39.

The square root of 1225154874 is about 35002.2124157888. The cubic root of 1225154874 is about 1070.0325707033.

The spelling of 1225154874 in words is "one billion, two hundred twenty-five million, one hundred fifty-four thousand, eight hundred seventy-four".