1948797137 has 8 divisors (see below), whose sum is σ = 2258566272. Its totient is φ = 1646870400.

The previous prime is 1948797083. The next prime is 1948797163. The reversal of 1948797137 is 7317978491.

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

It is not a de Polignac number, because 1948797137 - 2¹⁴ = 1948780753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1948797637) 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, 1960064 + ... + 1961057.

It is an arithmetic number, because the mean of its divisors is an integer number (282320784).

Almost surely, 2^1948797137 is an apocalyptic number.

It is an amenable number.

1948797137 is a deficient number, since it is larger than the sum of its proper divisors (309769135).

1948797137 is an equidigital number, since it uses as much as digits as its factorization.

1948797137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3921199.

The product of its digits is 2667168, while the sum is 56.

The square root of 1948797137 is about 44145.1824891460. The cubic root of 1948797137 is about 1249.0760397663.

The spelling of 1948797137 in words is "one billion, nine hundred forty-eight million, seven hundred ninety-seven thousand, one hundred thirty-seven".