1226115156 has 48 divisors (see below), whose sum is σ = 3278489984. Its totient is φ = 349370496.

The previous prime is 1226115133. The next prime is 1226115173. The reversal of 1226115156 is 6515116221.

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, 11766 + ... + 50898.

Almost surely, 2^1226115156 is an apocalyptic number.

It is an amenable number.

1226115156 is an abundant number, since it is smaller than the sum of its proper divisors (2052374828).

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

1226115156 is a wasteful number, since it uses less digits than its factorization.

1226115156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39520 (or 39518 counting only the distinct ones).

The product of its digits is 3600, while the sum is 30.

The square root of 1226115156 is about 35015.9271760723. The cubic root of 1226115156 is about 1070.3120631697.

The spelling of 1226115156 in words is "one billion, two hundred twenty-six million, one hundred fifteen thousand, one hundred fifty-six".