100190545 has 48 divisors (see below), whose sum is σ = 152832960. Its totient is φ = 62487936.

The previous prime is 100190539. The next prime is 100190549. The reversal of 100190545 is 545091001.

It is not a de Polignac number, because 100190545 - 2¹⁵ = 100157777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100190549) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 264166 + ... + 264544.

It is an arithmetic number, because the mean of its divisors is an integer number (3184020).

Almost surely, 2^100190545 is an apocalyptic number.

It is an amenable number.

100190545 is a deficient number, since it is larger than the sum of its proper divisors (52642415).

100190545 is a wasteful number, since it uses less digits than its factorization.

100190545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494 (or 487 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 100190545 is about 10009.5227158941. The cubic root of 100190545 is about 464.4535068251.

The spelling of 100190545 in words is "one hundred million, one hundred ninety thousand, five hundred forty-five".