135250442 has 16 divisors (see below), whose sum is σ = 212621760. Its totient is φ = 64402272.

The previous prime is 135250441. The next prime is 135250469. The reversal of 135250442 is 244052531.

It is a happy number.

It is a super-2 number, since 2×135250442² = 36585364122390728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135250441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4409 + ... + 17027.

It is an arithmetic number, because the mean of its divisors is an integer number (13288860).

Almost surely, 2^135250442 is an apocalyptic number.

135250442 is a deficient number, since it is larger than the sum of its proper divisors (77371318).

135250442 is a wasteful number, since it uses less digits than its factorization.

135250442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12877.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 135250442 is about 11629.7223526617. The cubic root of 135250442 is about 513.3098101138.

The spelling of 135250442 in words is "one hundred thirty-five million, two hundred fifty thousand, four hundred forty-two".