90257101 has 4 divisors (see below), whose sum is σ = 98462304. Its totient is φ = 82051900.

The previous prime is 90257099. The next prime is 90257119. The reversal of 90257101 is 10175209.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10175209 = 11 ⋅925019.

It is a cyclic number.

It is not a de Polignac number, because 90257101 - 2¹ = 90257099 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 (90257701) 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, 4102585 + ... + 4102606.

It is an arithmetic number, because the mean of its divisors is an integer number (24615576).

Almost surely, 2^90257101 is an apocalyptic number.

It is an amenable number.

90257101 is a deficient number, since it is larger than the sum of its proper divisors (8205203).

90257101 is a wasteful number, since it uses less digits than its factorization.

90257101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8205202.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 90257101 is about 9500.3737294909. The cubic root of 90257101 is about 448.5667999335.

The spelling of 90257101 in words is "ninety million, two hundred fifty-seven thousand, one hundred one".