235890137 has 4 divisors (see below), whose sum is σ = 269588736. Its totient is φ = 202191540.

The previous prime is 235890103. The next prime is 235890143. The reversal of 235890137 is 731098532.

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.

It is a cyclic number.

It is not a de Polignac number, because 235890137 - 2¹⁶ = 235824601 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 235890137.

It is not an unprimeable number, because it can be changed into a prime (235890937) 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, 16849289 + ... + 16849302.

It is an arithmetic number, because the mean of its divisors is an integer number (67397184).

Almost surely, 2^235890137 is an apocalyptic number.

It is an amenable number.

235890137 is a deficient number, since it is larger than the sum of its proper divisors (33698599).

235890137 is an equidigital number, since it uses as much as digits as its factorization.

235890137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33698598.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 235890137 is about 15358.7153434133. The cubic root of 235890137 is about 617.8787522702.

The spelling of 235890137 in words is "two hundred thirty-five million, eight hundred ninety thousand, one hundred thirty-seven".