90603545 has 16 divisors (see below), whose sum is σ = 114628608. Its totient is φ = 68646720.

The previous prime is 90603521. The next prime is 90603559. The reversal of 90603545 is 54530609.

It is a happy number.

It is not a de Polignac number, because 90603545 - 2¹² = 90599449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1067 + ... + 13503.

It is an arithmetic number, because the mean of its divisors is an integer number (7164288).

Almost surely, 2^90603545 is an apocalyptic number.

It is an amenable number.

90603545 is a deficient number, since it is larger than the sum of its proper divisors (24025063).

90603545 is a wasteful number, since it uses less digits than its factorization.

90603545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12520.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 90603545 is about 9518.5894438199. The cubic root of 90603545 is about 449.1399953337.

The spelling of 90603545 in words is "ninety million, six hundred three thousand, five hundred forty-five".