1081545415 has 16 divisors (see below), whose sum is σ = 1312344000. Its totient is φ = 855608832.

The previous prime is 1081545403. The next prime is 1081545431. The reversal of 1081545415 is 5145451801.

It is a cyclic number.

It is not a de Polignac number, because 1081545415 - 2⁹ = 1081544903 is a prime.

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, 324799 + ... + 328111.

It is an arithmetic number, because the mean of its divisors is an integer number (82021500).

Almost surely, 2^1081545415 is an apocalyptic number.

1081545415 is a deficient number, since it is larger than the sum of its proper divisors (230798585).

1081545415 is a wasteful number, since it uses less digits than its factorization.

1081545415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4026.

The product of its (nonzero) digits is 16000, while the sum is 34.

The square root of 1081545415 is about 32886.8577854437. The cubic root of 1081545415 is about 1026.4747093025.

It can be divided in two parts, 108154 and 5415, that added together give a square (113569 = 337²).

The spelling of 1081545415 in words is "one billion, eighty-one million, five hundred forty-five thousand, four hundred fifteen".