1074815381 has 4 divisors (see below), whose sum is σ = 1075239264. Its totient is φ = 1074391500.

The previous prime is 1074815359. The next prime is 1074815419. The reversal of 1074815381 is 1835184701.

It is a happy number.

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 1074815381 - 2¹⁴ = 1074798997 is a prime.

It is a super-2 number, since 2×1074815381² = 2310456206468350322, 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 (1074815311) 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, 208115 + ... + 213216.

It is an arithmetic number, because the mean of its divisors is an integer number (268809816).

Almost surely, 2^1074815381 is an apocalyptic number.

It is an amenable number.

1074815381 is a deficient number, since it is larger than the sum of its proper divisors (423883).

1074815381 is an equidigital number, since it uses as much as digits as its factorization.

1074815381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423882.

The product of its (nonzero) digits is 26880, while the sum is 38.

The square root of 1074815381 is about 32784.3770872652. The cubic root of 1074815381 is about 1024.3411609039.

The spelling of 1074815381 in words is "one billion, seventy-four million, eight hundred fifteen thousand, three hundred eighty-one".