135140372 has 6 divisors (see below), whose sum is σ = 236495658. Its totient is φ = 67570184.

The previous prime is 135140371. The next prime is 135140381. The reversal of 135140372 is 273041531.

It can be written as a sum of positive squares in only one way, i.e., 69789316 + 65351056 = 8354^2 + 8084^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135140371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16892543 + ... + 16892550.

It is an arithmetic number, because the mean of its divisors is an integer number (39415943).

Almost surely, 2^135140372 is an apocalyptic number.

It is an amenable number.

135140372 is a deficient number, since it is larger than the sum of its proper divisors (101355286).

135140372 is a wasteful number, since it uses less digits than its factorization.

135140372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33785097 (or 33785095 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 135140372 is about 11624.9891182745. The cubic root of 135140372 is about 513.1705244451.

The spelling of 135140372 in words is "one hundred thirty-five million, one hundred forty thousand, three hundred seventy-two".