1219915150 has 48 divisors (see below), whose sum is σ = 2295612000. Its totient is φ = 482290560.

The previous prime is 1219915141. The next prime is 1219915153. The reversal of 1219915150 is 515199121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1219915153) 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, 2778631 + ... + 2779069.

It is an arithmetic number, because the mean of its divisors is an integer number (47825250).

Almost surely, 2^1219915150 is an apocalyptic number.

1219915150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1219915150 is a deficient number, since it is larger than the sum of its proper divisors (1075696850).

1219915150 is a wasteful number, since it uses less digits than its factorization.

1219915150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973 (or 968 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 34.

The square root of 1219915150 is about 34927.2837478095. The cubic root of 1219915150 is about 1068.5049577856.

The spelling of 1219915150 in words is "one billion, two hundred nineteen million, nine hundred fifteen thousand, one hundred fifty".