1953399041 has 4 divisors (see below), whose sum is σ = 2130980784. Its totient is φ = 1775817300.

The previous prime is 1953399031. The next prime is 1953399061. The reversal of 1953399041 is 1409933591.

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 1953399041 - 2⁶ = 1953398977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1953398983 and 1953399001.

It is not an unprimeable number, because it can be changed into a prime (1953399011) 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, 88790855 + ... + 88790876.

It is an arithmetic number, because the mean of its divisors is an integer number (532745196).

Almost surely, 2^1953399041 is an apocalyptic number.

1953399041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1953399041 is a deficient number, since it is larger than the sum of its proper divisors (177581743).

1953399041 is a wasteful number, since it uses less digits than its factorization.

1953399041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177581742.

The product of its (nonzero) digits is 131220, while the sum is 44.

The square root of 1953399041 is about 44197.2741354034. The cubic root of 1953399041 is about 1250.0584593460.

The spelling of 1953399041 in words is "one billion, nine hundred fifty-three million, three hundred ninety-nine thousand, forty-one".