155442059 has 16 divisors (see below), whose sum is σ = 171456000. Its totient is φ = 140343840.

The previous prime is 155442047. The next prime is 155442061. The reversal of 155442059 is 950244551.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 155442059 - 2⁴ = 155442043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155442559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41744 + ... + 45314.

It is an arithmetic number, because the mean of its divisors is an integer number (10716000).

Almost surely, 2^155442059 is an apocalyptic number.

155442059 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

155442059 is a deficient number, since it is larger than the sum of its proper divisors (16013941).

155442059 is a wasteful number, since it uses less digits than its factorization.

155442059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3698.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 155442059 is about 12467.6404744442. The cubic root of 155442059 is about 537.6787178550.

The spelling of 155442059 in words is "one hundred fifty-five million, four hundred forty-two thousand, fifty-nine".