1061254121 has 4 divisors (see below), whose sum is σ = 1123680852. Its totient is φ = 998827392.

The previous prime is 1061254099. The next prime is 1061254133. The reversal of 1061254121 is 1214521601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 949317721 + 111936400 = 30811^2 + 10580^2 .

It is a cyclic number.

It is not a de Polignac number, because 1061254121 - 2⁶ = 1061254057 is a prime.

It is a super-2 number, since 2×1061254121² = 2252520618678965282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1061254151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31213340 + ... + 31213373.

It is an arithmetic number, because the mean of its divisors is an integer number (280920213).

Almost surely, 2^1061254121 is an apocalyptic number.

It is an amenable number.

1061254121 is a deficient number, since it is larger than the sum of its proper divisors (62426731).

1061254121 is an equidigital number, since it uses as much as digits as its factorization.

1061254121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62426730.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 1061254121 is about 32576.8955089339. The cubic root of 1061254121 is about 1020.0147764744.

Adding to 1061254121 its reverse (1214521601), we get a palindrome (2275775722).

The spelling of 1061254121 in words is "one billion, sixty-one million, two hundred fifty-four thousand, one hundred twenty-one".