145566031 has 8 divisors (see below), whose sum is σ = 160587504. Its totient is φ = 131090880.

The previous prime is 145566023. The next prime is 145566077. The reversal of 145566031 is 130665541.

145566031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 145566031 - 2³ = 145566023 is a prime.

It is a super-2 number, since 2×145566031² = 42378938762185922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145565984 and 145566002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145566131) 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, 136021 + ... + 137086.

It is an arithmetic number, because the mean of its divisors is an integer number (20073438).

Almost surely, 2^145566031 is an apocalyptic number.

145566031 is a deficient number, since it is larger than the sum of its proper divisors (15021473).

145566031 is a wasteful number, since it uses less digits than its factorization.

145566031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273161.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 145566031 is about 12065.0748443596. The cubic root of 145566031 is about 526.0415073723.

The spelling of 145566031 in words is "one hundred forty-five million, five hundred sixty-six thousand, thirty-one".