1237997453 has 8 divisors (see below), whose sum is σ = 1543477440. Its totient is φ = 964673280.

The previous prime is 1237997429. The next prime is 1237997489. The reversal of 1237997453 is 3547997321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1237997453 - 2¹⁰ = 1237996429 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 (1237997653) 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, 8038868 + ... + 8039021.

It is an arithmetic number, because the mean of its divisors is an integer number (192934680).

Almost surely, 2^1237997453 is an apocalyptic number.

It is an amenable number.

1237997453 is a deficient number, since it is larger than the sum of its proper divisors (305479987).

1237997453 is a wasteful number, since it uses less digits than its factorization.

1237997453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16077907.

The product of its digits is 1428840, while the sum is 50.

The square root of 1237997453 is about 35185.1879773293. The cubic root of 1237997453 is about 1073.7584232298.

The spelling of 1237997453 in words is "one billion, two hundred thirty-seven million, nine hundred ninety-seven thousand, four hundred fifty-three".