145435531 has 16 divisors (see below), whose sum is σ = 152409600. Its totient is φ = 138671968.

The previous prime is 145435517. The next prime is 145435573. The reversal of 145435531 is 135534541.

145435531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 145435531 - 2⁹ = 145435019 is a prime.

It is a super-2 number, since 2×145435531² = 42302987354503922, 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 = 145435493 and 145435502.

It is not an unprimeable number, because it can be changed into a prime (145435931) 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, 496221 + ... + 496513.

It is an arithmetic number, because the mean of its divisors is an integer number (9525600).

Almost surely, 2^145435531 is an apocalyptic number.

145435531 is a deficient number, since it is larger than the sum of its proper divisors (6974069).

145435531 is a wasteful number, since it uses less digits than its factorization.

145435531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578.

The product of its digits is 18000, while the sum is 31.

The square root of 145435531 is about 12059.6654597049. The cubic root of 145435531 is about 525.8842615715.

The spelling of 145435531 in words is "one hundred forty-five million, four hundred thirty-five thousand, five hundred thirty-one".