1253143102 has 16 divisors (see below), whose sum is σ = 1900886400. Its totient is φ = 619551000.

The previous prime is 1253143079. The next prime is 1253143103. The reversal of 1253143102 is 2013413521.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253143103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60799 + ... + 78757.

It is an arithmetic number, because the mean of its divisors is an integer number (118805400).

Almost surely, 2^1253143102 is an apocalyptic number.

1253143102 is a deficient number, since it is larger than the sum of its proper divisors (647743298).

1253143102 is a wasteful number, since it uses less digits than its factorization.

1253143102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18351.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1253143102 is about 35399.7613268790. The cubic root of 1253143102 is about 1078.1194703765.

Adding to 1253143102 its reverse (2013413521), we get a palindrome (3266556623).

The spelling of 1253143102 in words is "one billion, two hundred fifty-three million, one hundred forty-three thousand, one hundred two".