145353831 has 16 divisors (see below), whose sum is σ = 222317568. Its totient is φ = 82749600.

The previous prime is 145353809. The next prime is 145353851. The reversal of 145353831 is 138353541.

It is not a de Polignac number, because 145353831 - 2⁹ = 145353319 is a prime.

It is a super-2 number, since 2×145353831² = 42255472372753122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145353792 and 145353801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145353851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7080 + ... + 18461.

It is an arithmetic number, because the mean of its divisors is an integer number (13894848).

Almost surely, 2^145353831 is an apocalyptic number.

145353831 is a deficient number, since it is larger than the sum of its proper divisors (76963737).

145353831 is a wasteful number, since it uses less digits than its factorization.

145353831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25822.

The product of its digits is 21600, while the sum is 33.

The square root of 145353831 is about 12056.2776593773. The cubic root of 145353831 is about 525.7857693812.

The spelling of 145353831 in words is "one hundred forty-five million, three hundred fifty-three thousand, eight hundred thirty-one".