1010505399 has 4 divisors (see below), whose sum is σ = 1347340536. Its totient is φ = 673670264.

The previous prime is 1010505361. The next prime is 1010505401. The reversal of 1010505399 is 9935050101.

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 1010505399 - 2¹³ = 1010497207 is a prime.

It is a super-2 number, since 2×1010505399² = 2042242322816298402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010505359) 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, 168417564 + ... + 168417569.

It is an arithmetic number, because the mean of its divisors is an integer number (336835134).

Almost surely, 2^1010505399 is an apocalyptic number.

1010505399 is a deficient number, since it is larger than the sum of its proper divisors (336835137).

1010505399 is an equidigital number, since it uses as much as digits as its factorization.

1010505399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336835136.

The product of its (nonzero) digits is 6075, while the sum is 33.

The square root of 1010505399 is about 31788.4475714056. The cubic root of 1010505399 is about 1003.4896081370.

The spelling of 1010505399 in words is "one billion, ten million, five hundred five thousand, three hundred ninety-nine".