1040171655 has 32 divisors (see below), whose sum is σ = 1691186688. Its totient is φ = 545820800.

The previous prime is 1040171653. The next prime is 1040171659. The reversal of 1040171655 is 5561710401.

It is not a de Polignac number, because 1040171655 - 2¹ = 1040171653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040171653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 880165 + ... + 881345.

It is an arithmetic number, because the mean of its divisors is an integer number (52849584).

Almost surely, 2^1040171655 is an apocalyptic number.

1040171655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1040171655 is a deficient number, since it is larger than the sum of its proper divisors (651015033).

1040171655 is a wasteful number, since it uses less digits than its factorization.

1040171655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2087.

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 1040171655 is about 32251.6922811812. The cubic root of 1040171655 is about 1013.2151423811.

The spelling of 1040171655 in words is "one billion, forty million, one hundred seventy-one thousand, six hundred fifty-five".