1051121505 has 32 divisors (see below), whose sum is σ = 2005622784. Its totient is φ = 459619776.

The previous prime is 1051121503. The next prime is 1051121537. The reversal of 1051121505 is 5051211501.

It is not a de Polignac number, because 1051121505 - 2¹ = 1051121503 is a prime.

It is a super-2 number, since 2×1051121505² = 2209712836546930050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1051121503) 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, 215209 + ... + 220038.

It is an arithmetic number, because the mean of its divisors is an integer number (62675712).

Almost surely, 2^1051121505 is an apocalyptic number.

1051121505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1051121505 is a deficient number, since it is larger than the sum of its proper divisors (954501279).

1051121505 is a wasteful number, since it uses less digits than its factorization.

1051121505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435285.

The product of its (nonzero) digits is 250, while the sum is 21.

The square root of 1051121505 is about 32421.0040714349. The cubic root of 1051121505 is about 1016.7580990360.

The spelling of 1051121505 in words is "one billion, fifty-one million, one hundred twenty-one thousand, five hundred five".