145909835 has 16 divisors (see below), whose sum is σ = 185100960. Its totient is φ = 110108160.

The previous prime is 145909789. The next prime is 145909837. The reversal of 145909835 is 538909541.

It is a happy number.

It is not a de Polignac number, because 145909835 - 2¹⁶ = 145844299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145909837) 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, 19709 + ... + 26081.

It is an arithmetic number, because the mean of its divisors is an integer number (11568810).

Almost surely, 2^145909835 is an apocalyptic number.

145909835 is a deficient number, since it is larger than the sum of its proper divisors (39191125).

145909835 is a wasteful number, since it uses less digits than its factorization.

145909835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6638.

The product of its (nonzero) digits is 194400, while the sum is 44.

The square root of 145909835 is about 12079.3143431240. The cubic root of 145909835 is about 526.4553241030.

The spelling of 145909835 in words is "one hundred forty-five million, nine hundred nine thousand, eight hundred thirty-five".