1253450101 has 4 divisors (see below), whose sum is σ = 1267533900. Its totient is φ = 1239366304.

The previous prime is 1253450089. The next prime is 1253450111. The reversal of 1253450101 is 1010543521.

It is a happy number.

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 213452100 + 1039998001 = 14610^2 + 32249^2 .

It is a cyclic number.

It is not a de Polignac number, because 1253450101 - 2⁷ = 1253449973 is a prime.

It is a super-2 number, since 2×1253450101² = 3142274311393820402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253450111) 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, 7041766 + ... + 7041943.

It is an arithmetic number, because the mean of its divisors is an integer number (316883475).

Almost surely, 2^1253450101 is an apocalyptic number.

It is an amenable number.

1253450101 is a deficient number, since it is larger than the sum of its proper divisors (14083799).

1253450101 is an equidigital number, since it uses as much as digits as its factorization.

1253450101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14083798.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1253450101 is about 35404.0972346422. The cubic root of 1253450101 is about 1078.2075035718.

Adding to 1253450101 its reverse (1010543521), we get a palindrome (2263993622).

The spelling of 1253450101 in words is "one billion, two hundred fifty-three million, four hundred fifty thousand, one hundred one".