145854637 has 8 divisors (see below), whose sum is σ = 147466296. Its totient is φ = 144248832.

The previous prime is 145854623. The next prime is 145854641. The reversal of 145854637 is 736458541.

It can be written as a sum of positive squares in 4 ways, for example, as 43217476 + 102637161 = 6574^2 + 10131^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145854637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145854593 and 145854602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145854607) 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, 64083 + ... + 66319.

It is an arithmetic number, because the mean of its divisors is an integer number (18433287).

Almost surely, 2^145854637 is an apocalyptic number.

It is an amenable number.

145854637 is a deficient number, since it is larger than the sum of its proper divisors (1611659).

145854637 is a wasteful number, since it uses less digits than its factorization.

145854637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2927.

The product of its digits is 403200, while the sum is 43.

The square root of 145854637 is about 12077.0293118796. The cubic root of 145854637 is about 526.3889293414.

The spelling of 145854637 in words is "one hundred forty-five million, eight hundred fifty-four thousand, six hundred thirty-seven".