1090625653 has 8 divisors (see below), whose sum is σ = 1206264248. Its totient is φ = 979521984.

The previous prime is 1090625639. The next prime is 1090625671. The reversal of 1090625653 is 3565260901.

It can be written as a sum of positive squares in 4 ways, for example, as 469718929 + 620906724 = 21673^2 + 24918^2 .

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 1090625653 - 2⁹ = 1090625141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090625603) 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, 1133226 + ... + 1134187.

It is an arithmetic number, because the mean of its divisors is an integer number (150783031).

Almost surely, 2^1090625653 is an apocalyptic number.

1090625653 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1090625653 is a deficient number, since it is larger than the sum of its proper divisors (115638595).

1090625653 is a wasteful number, since it uses less digits than its factorization.

1090625653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2267463.

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 1090625653 is about 33024.6219206216. The cubic root of 1090625653 is about 1029.3393359646.

The spelling of 1090625653 in words is "one billion, ninety million, six hundred twenty-five thousand, six hundred fifty-three".