1051161394 has 16 divisors (see below), whose sum is σ = 1609022016. Its totient is φ = 514890000.

The previous prime is 1051161389. The next prime is 1051161421. The reversal of 1051161394 is 4931611501.

It is a super-2 number, since 2×1051161394² = 2209880552472046472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13459 + ... + 47785.

It is an arithmetic number, because the mean of its divisors is an integer number (100563876).

Almost surely, 2^1051161394 is an apocalyptic number.

1051161394 is a deficient number, since it is larger than the sum of its proper divisors (557860622).

1051161394 is a wasteful number, since it uses less digits than its factorization.

1051161394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34641.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 1051161394 is about 32421.6192377864. The cubic root of 1051161394 is about 1016.7709605211.

Adding to 1051161394 its reverse (4931611501), we get a palindrome (5982772895).

The spelling of 1051161394 in words is "one billion, fifty-one million, one hundred sixty-one thousand, three hundred ninety-four".