155141999 has 8 divisors (see below), whose sum is σ = 160885920. Its totient is φ = 149479776.

The previous prime is 155141981. The next prime is 155142047. The reversal of 155141999 is 999141551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155141999 - 2⁸ = 155141743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155191999) 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, 16544 + ... + 24165.

It is an arithmetic number, because the mean of its divisors is an integer number (20110740).

Almost surely, 2^155141999 is an apocalyptic number.

155141999 is a deficient number, since it is larger than the sum of its proper divisors (5743921).

155141999 is a wasteful number, since it uses less digits than its factorization.

155141999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40849.

The product of its digits is 72900, while the sum is 44.

The square root of 155141999 is about 12455.6011095410. The cubic root of 155141999 is about 537.3325228355.

The spelling of 155141999 in words is "one hundred fifty-five million, one hundred forty-one thousand, nine hundred ninety-nine".