1948249031 has 4 divisors (see below), whose sum is σ = 1993557192. Its totient is φ = 1902940872.

The previous prime is 1948249027. The next prime is 1948249057. The reversal of 1948249031 is 1309428491.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1948249031 - 2² = 1948249027 is a prime.

It is a super-2 number, since 2×1948249031² = 7591348573584877922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1948249031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1948249001) 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, 22654016 + ... + 22654101.

It is an arithmetic number, because the mean of its divisors is an integer number (498389298).

Almost surely, 2^1948249031 is an apocalyptic number.

1948249031 is a deficient number, since it is larger than the sum of its proper divisors (45308161).

1948249031 is an equidigital number, since it uses as much as digits as its factorization.

1948249031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45308160.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 1948249031 is about 44138.9740592144. The cubic root of 1948249031 is about 1248.9589264534.

The spelling of 1948249031 in words is "one billion, nine hundred forty-eight million, two hundred forty-nine thousand, thirty-one".