145064091 has 8 divisors (see below), whose sum is σ = 193483584. Its totient is φ = 96677000.

The previous prime is 145064057. The next prime is 145064113. The reversal of 145064091 is 190460541.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 145064091 - 2¹⁵ = 145031323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145065091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5716 + ... + 17966.

It is an arithmetic number, because the mean of its divisors is an integer number (24185448).

Almost surely, 2^145064091 is an apocalyptic number.

145064091 is a deficient number, since it is larger than the sum of its proper divisors (48419493).

145064091 is a wasteful number, since it uses less digits than its factorization.

145064091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16201.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 145064091 is about 12044.2555187110. The cubic root of 145064091 is about 525.4361799168.

The spelling of 145064091 in words is "one hundred forty-five million, sixty-four thousand, ninety-one".