145104031 has 8 divisors (see below), whose sum is σ = 146785184. Its totient is φ = 143428320.

The previous prime is 145103939. The next prime is 145104041. The reversal of 145104031 is 130401541.

145104031 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 145104031 - 2¹⁷ = 144972959 is a prime.

It is a super-2 number, since 2×145104031² = 42110359624897922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145104041) 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, 77041 + ... + 78901.

It is an arithmetic number, because the mean of its divisors is an integer number (18348148).

Almost surely, 2^145104031 is an apocalyptic number.

145104031 is a deficient number, since it is larger than the sum of its proper divisors (1681153).

145104031 is a wasteful number, since it uses less digits than its factorization.

145104031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2721.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 145104031 is about 12045.9134564382. The cubic root of 145104031 is about 525.4843976739.

Adding to 145104031 its reverse (130401541), we get a palindrome (275505572).

The spelling of 145104031 in words is "one hundred forty-five million, one hundred four thousand, thirty-one".