1215545341234 has 32 divisors (see below), whose sum is σ = 2102894130816. Its totient is φ = 516175376640.

The previous prime is 1215545341207. The next prime is 1215545341259. The reversal of 1215545341234 is 4321435455121.

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, 4976349 + ... + 5214895.

It is an arithmetic number, because the mean of its divisors is an integer number (65715441588).

Almost surely, 2^{1215545341234} is an apocalyptic number.

1215545341234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1215545341234 is a deficient number, since it is larger than the sum of its proper divisors (887348789582).

1215545341234 is a wasteful number, since it uses less digits than its factorization.

1215545341234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241890.

The product of its digits is 288000, while the sum is 40.

The spelling of 1215545341234 in words is "one trillion, two hundred fifteen billion, five hundred forty-five million, three hundred forty-one thousand, two hundred thirty-four".