145511142 has 32 divisors (see below), whose sum is σ = 332985600. Its totient is φ = 41526048.

The previous prime is 145511141. The next prime is 145511159. The reversal of 145511142 is 241115541.

It is a super-2 number, since 2×145511142² = 42346984892288328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145511141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50209 + ... + 53027.

It is an arithmetic number, because the mean of its divisors is an integer number (10405800).

Almost surely, 2^145511142 is an apocalyptic number.

145511142 is an abundant number, since it is smaller than the sum of its proper divisors (187474458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145511142 is a wasteful number, since it uses less digits than its factorization.

145511142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4060.

The product of its digits is 800, while the sum is 24.

The square root of 145511142 is about 12062.7999237325. The cubic root of 145511142 is about 525.9753804011.

Adding to 145511142 its reverse (241115541), we get a palindrome (386626683).

The spelling of 145511142 in words is "one hundred forty-five million, five hundred eleven thousand, one hundred forty-two".