145276442 has 8 divisors (see below), whose sum is σ = 218028756. Its totient is φ = 72600192.

The previous prime is 145276387. The next prime is 145276459. The reversal of 145276442 is 244672541.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 141586201 + 3690241 = 11899^2 + 1921^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×145276442² = 42210489200358728, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13973 + ... + 22040.

Almost surely, 2^145276442 is an apocalyptic number.

145276442 is a deficient number, since it is larger than the sum of its proper divisors (72752314).

145276442 is a wasteful number, since it uses less digits than its factorization.

145276442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38032.

The product of its digits is 53760, while the sum is 35.

The square root of 145276442 is about 12053.0677422804. The cubic root of 145276442 is about 525.6924402084.

The spelling of 145276442 in words is "one hundred forty-five million, two hundred seventy-six thousand, four hundred forty-two".