1308990553 has 8 divisors (see below), whose sum is σ = 1411406528. Its totient is φ = 1206820944.

The previous prime is 1308990547. The next prime is 1308990569. The reversal of 1308990553 is 3550998031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1308990553 - 2¹³ = 1308982361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1308990533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50475 + ... + 71872.

It is an arithmetic number, because the mean of its divisors is an integer number (176425816).

Almost surely, 2^1308990553 is an apocalyptic number.

1308990553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1308990553 is a deficient number, since it is larger than the sum of its proper divisors (102415975).

1308990553 is a wasteful number, since it uses less digits than its factorization.

1308990553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123183.

The product of its (nonzero) digits is 145800, while the sum is 43.

The square root of 1308990553 is about 36179.9744748390. The cubic root of 1308990553 is about 1093.9030605583.

The spelling of 1308990553 in words is "one billion, three hundred eight million, nine hundred ninety thousand, five hundred fifty-three".