1047625381 has 12 divisors (see below), whose sum is σ = 1152337536. Its totient is φ = 951712520.

The previous prime is 1047625349. The next prime is 1047625427. The reversal of 1047625381 is 1835267401.

It is not a de Polignac number, because 1047625381 - 2⁵ = 1047625349 is a prime.

It is a super-2 number, since 2×1047625381² = 2195037877830790322, 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 1047625381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047625301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 265086 + ... + 269008.

It is an arithmetic number, because the mean of its divisors is an integer number (96028128).

Almost surely, 2^1047625381 is an apocalyptic number.

1047625381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1047625381 is a deficient number, since it is larger than the sum of its proper divisors (104712155).

1047625381 is a wasteful number, since it uses less digits than its factorization.

1047625381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6152 (or 6141 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 1047625381 is about 32367.0415855388. The cubic root of 1047625381 is about 1015.6295708336.

The spelling of 1047625381 in words is "one billion, forty-seven million, six hundred twenty-five thousand, three hundred eighty-one".