90223545 has 8 divisors (see below), whose sum is σ = 144357696. Its totient is φ = 48119216.

The previous prime is 90223541. The next prime is 90223559. The reversal of 90223545 is 54532209.

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 90223545 - 2² = 90223541 is a prime.

It is a super-3 number, since 3×90223545³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (90223541) 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, 3007437 + ... + 3007466.

It is an arithmetic number, because the mean of its divisors is an integer number (18044712).

Almost surely, 2^90223545 is an apocalyptic number.

It is an amenable number.

90223545 is a deficient number, since it is larger than the sum of its proper divisors (54134151).

90223545 is a wasteful number, since it uses less digits than its factorization.

90223545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6014911.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 90223545 is about 9498.6075295277. The cubic root of 90223545 is about 448.5112032985.

The spelling of 90223545 in words is "ninety million, two hundred twenty-three thousand, five hundred forty-five".