1051491316 has 6 divisors (see below), whose sum is σ = 1840109810. Its totient is φ = 525745656.

The previous prime is 1051491313. The next prime is 1051491317. The reversal of 1051491316 is 6131941501.

It can be written as a sum of positive squares in only one way, i.e., 602898916 + 448592400 = 24554^2 + 21180^2 .

It is a super-2 number, since 2×1051491316² = 2211267975246823712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051491313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131436411 + ... + 131436418.

Almost surely, 2^1051491316 is an apocalyptic number.

It is an amenable number.

1051491316 is a deficient number, since it is larger than the sum of its proper divisors (788618494).

1051491316 is a wasteful number, since it uses less digits than its factorization.

1051491316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262872833 (or 262872831 counting only the distinct ones).

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

The square root of 1051491316 is about 32426.7068324861. The cubic root of 1051491316 is about 1016.8773254178.

The spelling of 1051491316 in words is "one billion, fifty-one million, four hundred ninety-one thousand, three hundred sixteen".