145601031 has 8 divisors (see below), whose sum is σ = 199381744. Its totient is φ = 94443840.

The previous prime is 145601023. The next prime is 145601033. The reversal of 145601031 is 130106541.

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

It is not a de Polignac number, because 145601031 - 2³ = 145601023 is a prime.

It is a super-2 number, since 2×145601031² = 42399320456525922, 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 = 145600989 and 145601007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145601033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 655750 + ... + 655971.

It is an arithmetic number, because the mean of its divisors is an integer number (24922718).

Almost surely, 2^145601031 is an apocalyptic number.

145601031 is a deficient number, since it is larger than the sum of its proper divisors (53780713).

145601031 is a wasteful number, since it uses less digits than its factorization.

145601031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311761.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 145601031 is about 12066.5252247696. The cubic root of 145601031 is about 526.0836645918.

Adding to 145601031 its reverse (130106541), we get a palindrome (275707572).

The spelling of 145601031 in words is "one hundred forty-five million, six hundred one thousand, thirty-one".