7138446253 has 4 divisors (see below), whose sum is σ = 7138823328. Its totient is φ = 7138069180.

The previous prime is 7138446247. The next prime is 7138446277. The reversal of 7138446253 is 3526448317.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7138446253 - 2¹³ = 7138438061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7138446233) 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, 158551 + ... + 198532.

It is an arithmetic number, because the mean of its divisors is an integer number (1784705832).

Almost surely, 2^7138446253 is an apocalyptic number.

It is an amenable number.

7138446253 is a deficient number, since it is larger than the sum of its proper divisors (377075).

7138446253 is a wasteful number, since it uses less digits than its factorization.

7138446253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377074.

The product of its digits is 483840, while the sum is 43.

The square root of 7138446253 is about 84489.3262666948. The cubic root of 7138446253 is about 1925.4602826253.

The spelling of 7138446253 in words is "seven billion, one hundred thirty-eight million, four hundred forty-six thousand, two hundred fifty-three".