145451807 has 8 divisors (see below), whose sum is σ = 148488192. Its totient is φ = 142443000.

The previous prime is 145451777. The next prime is 145451819. The reversal of 145451807 is 708154541.

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 145451807 - 2¹² = 145447711 is a prime.

It is a Duffinian number.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145451837) 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, 3938 + ... + 17504.

It is an arithmetic number, because the mean of its divisors is an integer number (18561024).

Almost surely, 2^145451807 is an apocalyptic number.

145451807 is a deficient number, since it is larger than the sum of its proper divisors (3036385).

145451807 is a wasteful number, since it uses less digits than its factorization.

145451807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13789.

The product of its (nonzero) digits is 22400, while the sum is 35.

The square root of 145451807 is about 12060.3402522483. The cubic root of 145451807 is about 525.9038784489.

The spelling of 145451807 in words is "one hundred forty-five million, four hundred fifty-one thousand, eight hundred seven".