145542155 has 16 divisors (see below), whose sum is σ = 197100000. Its totient is φ = 102197760.

The previous prime is 145542139. The next prime is 145542197. The reversal of 145542155 is 551245541.

It is not a de Polignac number, because 145542155 - 2⁴ = 145542139 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44030 + ... + 47219.

It is an arithmetic number, because the mean of its divisors is an integer number (12318750).

Almost surely, 2^145542155 is an apocalyptic number.

145542155 is a deficient number, since it is larger than the sum of its proper divisors (51557845).

145542155 is a wasteful number, since it uses less digits than its factorization.

145542155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91294.

The product of its digits is 20000, while the sum is 32.

The square root of 145542155 is about 12064.0853362366. The cubic root of 145542155 is about 526.0127450444.

Adding to 145542155 its reverse (551245541), we get a palindrome (696787696).

The spelling of 145542155 in words is "one hundred forty-five million, five hundred forty-two thousand, one hundred fifty-five".