155940134 has 16 divisors (see below), whose sum is σ = 276544800. Its totient is φ = 64526784.

The previous prime is 155940131. The next prime is 155940139. The reversal of 155940134 is 431049551.

155940134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 155940134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155940131) 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, 191639 + ... + 192450.

It is an arithmetic number, because the mean of its divisors is an integer number (17284050).

Almost surely, 2^155940134 is an apocalyptic number.

155940134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

155940134 is a deficient number, since it is larger than the sum of its proper divisors (120604666).

155940134 is a wasteful number, since it uses less digits than its factorization.

155940134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384127.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 155940134 is about 12487.5992088151. The cubic root of 155940134 is about 538.2523909866.

Adding to 155940134 its reverse (431049551), we get a palindrome (586989685).

The spelling of 155940134 in words is "one hundred fifty-five million, nine hundred forty thousand, one hundred thirty-four".