145242153 has 40 divisors (see below), whose sum is σ = 250038272. Its totient is φ = 82301184.

The previous prime is 145242143. The next prime is 145242157. The reversal of 145242153 is 351242541.

It is not a de Polignac number, because 145242153 - 2¹² = 145238057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145242157) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 71001 + ... + 73017.

Almost surely, 2^145242153 is an apocalyptic number.

It is an amenable number.

145242153 is a deficient number, since it is larger than the sum of its proper divisors (104796119).

145242153 is a wasteful number, since it uses less digits than its factorization.

145242153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2163 (or 2154 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 145242153 is about 12051.6452403811. The cubic root of 145242153 is about 525.6510779472.

Adding to 145242153 its reverse (351242541), we get a palindrome (496484694).

The spelling of 145242153 in words is "one hundred forty-five million, two hundred forty-two thousand, one hundred fifty-three".