90101401 has 16 divisors (see below), whose sum is σ = 104910400. Its totient is φ = 76655808.

The previous prime is 90101387. The next prime is 90101441. The reversal of 90101401 is 10410109.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 90101401 - 2⁷ = 90101273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90101441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4210 + ... + 14068.

It is an arithmetic number, because the mean of its divisors is an integer number (6556900).

Almost surely, 2^90101401 is an apocalyptic number.

It is an amenable number.

90101401 is a deficient number, since it is larger than the sum of its proper divisors (14808999).

90101401 is a wasteful number, since it uses less digits than its factorization.

90101401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9928.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 90101401 is about 9492.1757779763. The cubic root of 90101401 is about 448.3087147921.

The spelling of 90101401 in words is "ninety million, one hundred one thousand, four hundred one".