1147640351 has 12 divisors (see below), whose sum is σ = 1358492856. Its totient is φ = 963053520.

The previous prime is 1147640341. The next prime is 1147640353. The reversal of 1147640351 is 1530467411.

It is not a de Polignac number, because 1147640351 - 2¹⁰ = 1147639327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147640353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 363221 + ... + 366366.

It is an arithmetic number, because the mean of its divisors is an integer number (113207738).

Almost surely, 2^1147640351 is an apocalyptic number.

1147640351 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1147640351 is a deficient number, since it is larger than the sum of its proper divisors (210852505).

1147640351 is a wasteful number, since it uses less digits than its factorization.

1147640351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729622 (or 729611 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 1147640351 is about 33876.8409241476. The cubic root of 1147640351 is about 1046.9724887081.

The spelling of 1147640351 in words is "one billion, one hundred forty-seven million, six hundred forty thousand, three hundred fifty-one".