155142245 has 8 divisors (see below), whose sum is σ = 194265216. Its totient is φ = 118717456.

The previous prime is 155142241. The next prime is 155142269. The reversal of 155142245 is 542241551.

155142245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 155142245 - 2² = 155142241 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 (155142241) 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, 674417 + ... + 674646.

It is an arithmetic number, because the mean of its divisors is an integer number (24283152).

Almost surely, 2^155142245 is an apocalyptic number.

It is an amenable number.

155142245 is a deficient number, since it is larger than the sum of its proper divisors (39122971).

155142245 is a wasteful number, since it uses less digits than its factorization.

155142245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349091.

The product of its digits is 8000, while the sum is 29.

The square root of 155142245 is about 12455.6109846125. The cubic root of 155142245 is about 537.3328068414.

Adding to 155142245 its reverse (542241551), we get a palindrome (697383796).

The spelling of 155142245 in words is "one hundred fifty-five million, one hundred forty-two thousand, two hundred forty-five".