145543764 has 24 divisors (see below), whose sum is σ = 339943968. Its totient is φ = 48465760.

The previous prime is 145543763. The next prime is 145543771. The reversal of 145543764 is 467345541.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145543763) 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, 7534 + ... + 18650.

It is an arithmetic number, because the mean of its divisors is an integer number (14164332).

Almost surely, 2^145543764 is an apocalyptic number.

It is an amenable number.

145543764 is an abundant number, since it is smaller than the sum of its proper divisors (194400204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145543764 is a wasteful number, since it uses less digits than its factorization.

145543764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12215 (or 12213 counting only the distinct ones).

The product of its digits is 201600, while the sum is 39.

The square root of 145543764 is about 12064.1520215886. The cubic root of 145543764 is about 526.0146834321.

The spelling of 145543764 in words is "one hundred forty-five million, five hundred forty-three thousand, seven hundred sixty-four".