1225156152 has 64 divisors (see below), whose sum is σ = 3345442560. Its totient is φ = 370803200.

The previous prime is 1225156139. The next prime is 1225156169. The reversal of 1225156152 is 2516515221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257152 + ... + 261872.

It is an arithmetic number, because the mean of its divisors is an integer number (52272540).

Almost surely, 2^1225156152 is an apocalyptic number.

1225156152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1225156152 is an abundant number, since it is smaller than the sum of its proper divisors (2120286408).

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

1225156152 is a wasteful number, since it uses less digits than its factorization.

1225156152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5724 (or 5720 counting only the distinct ones).

The product of its digits is 6000, while the sum is 30.

The square root of 1225156152 is about 35002.2306717729. The cubic root of 1225156152 is about 1070.0329427654.

The spelling of 1225156152 in words is "one billion, two hundred twenty-five million, one hundred fifty-six thousand, one hundred fifty-two".