1215375054 has 32 divisors (see below), whose sum is σ = 2492701344. Its totient is φ = 394821120.

The previous prime is 1215375053. The next prime is 1215375097. The reversal of 1215375054 is 4505735121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215375053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296362 + ... + 300434.

It is an arithmetic number, because the mean of its divisors is an integer number (77896917).

Almost surely, 2^1215375054 is an apocalyptic number.

1215375054 is an abundant number, since it is smaller than the sum of its proper divisors (1277326290).

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

1215375054 is a wasteful number, since it uses less digits than its factorization.

1215375054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5332.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 1215375054 is about 34862.2296188870. The cubic root of 1215375054 is about 1067.1777765174.

The spelling of 1215375054 in words is "one billion, two hundred fifteen million, three hundred seventy-five thousand, fifty-four".