145354731 has 8 divisors (see below), whose sum is σ = 204006720. Its totient is φ = 91802952.

The previous prime is 145354723. The next prime is 145354747. The reversal of 145354731 is 137453541.

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

It is not a de Polignac number, because 145354731 - 2³ = 145354723 is a prime.

It is a super-2 number, since 2×145354731² = 42255995648164722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145354692 and 145354701.

It is not an unprimeable number, because it can be changed into a prime (145354721) 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, 1274985 + ... + 1275098.

It is an arithmetic number, because the mean of its divisors is an integer number (25500840).

Almost surely, 2^145354731 is an apocalyptic number.

145354731 is a deficient number, since it is larger than the sum of its proper divisors (58651989).

145354731 is a wasteful number, since it uses less digits than its factorization.

145354731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2550105.

The product of its digits is 25200, while the sum is 33.

The square root of 145354731 is about 12056.3149842728. The cubic root of 145354731 is about 525.7868545635.

The spelling of 145354731 in words is "one hundred forty-five million, three hundred fifty-four thousand, seven hundred thirty-one".