1995274237 has 8 divisors (see below), whose sum is σ = 2184357600. Its totient is φ = 1807473360.

The previous prime is 1995274223. The next prime is 1995274243. The reversal of 1995274237 is 7324725991.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-1995274237 is a prime.

It is a super-2 number, since 2×1995274237² = 7962238561671864338, 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 (1995274837) 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, 317362 + ... + 323587.

It is an arithmetic number, because the mean of its divisors is an integer number (273044700).

Almost surely, 2^1995274237 is an apocalyptic number.

It is an amenable number.

1995274237 is a deficient number, since it is larger than the sum of its proper divisors (189083363).

1995274237 is a wasteful number, since it uses less digits than its factorization.

1995274237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641243.

The product of its digits is 952560, while the sum is 49.

The square root of 1995274237 is about 44668.4926654124. The cubic root of 1995274237 is about 1258.9279192202.

The spelling of 1995274237 in words is "one billion, nine hundred ninety-five million, two hundred seventy-four thousand, two hundred thirty-seven".