100190551 has 4 divisors (see below), whose sum is σ = 100211104. Its totient is φ = 100170000.

The previous prime is 100190549. The next prime is 100190557. The reversal of 100190551 is 155091001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100190551 - 2¹ = 100190549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100190557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1651 + ... + 14251.

It is an arithmetic number, because the mean of its divisors is an integer number (25052776).

Almost surely, 2^100190551 is an apocalyptic number.

100190551 is a deficient number, since it is larger than the sum of its proper divisors (20553).

100190551 is an equidigital number, since it uses as much as digits as its factorization.

100190551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20552.

The product of its (nonzero) digits is 225, while the sum is 22.

The square root of 100190551 is about 10009.5230156087. The cubic root of 100190551 is about 464.4535160965.

The spelling of 100190551 in words is "one hundred million, one hundred ninety thousand, five hundred fifty-one".