1435145723 has 4 divisors (see below), whose sum is σ = 1565613528. Its totient is φ = 1304677920.

The previous prime is 1435145687. The next prime is 1435145773. The reversal of 1435145723 is 3275415341.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1435145723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1435145773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65233886 + ... + 65233907.

It is an arithmetic number, because the mean of its divisors is an integer number (391403382).

Almost surely, 2^1435145723 is an apocalyptic number.

1435145723 is a deficient number, since it is larger than the sum of its proper divisors (130467805).

1435145723 is a wasteful number, since it uses less digits than its factorization.

1435145723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130467804.

The product of its digits is 50400, while the sum is 35.

The square root of 1435145723 is about 37883.3172121978. The cubic root of 1435145723 is about 1127.9729034933.

The spelling of 1435145723 in words is "one billion, four hundred thirty-five million, one hundred forty-five thousand, seven hundred twenty-three".