145921767 has 8 divisors (see below), whose sum is σ = 204802560. Its totient is φ = 92161080.

The previous prime is 145921751. The next prime is 145921771. The reversal of 145921767 is 767129541.

It is a happy number.

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

It is not a de Polignac number, because 145921767 - 2⁴ = 145921751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145921367) 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, 1279959 + ... + 1280072.

It is an arithmetic number, because the mean of its divisors is an integer number (25600320).

Almost surely, 2^145921767 is an apocalyptic number.

145921767 is a deficient number, since it is larger than the sum of its proper divisors (58880793).

145921767 is a wasteful number, since it uses less digits than its factorization.

145921767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560053.

The product of its digits is 105840, while the sum is 42.

The square root of 145921767 is about 12079.8082352329. The cubic root of 145921767 is about 526.4696742751.

The spelling of 145921767 in words is "one hundred forty-five million, nine hundred twenty-one thousand, seven hundred sixty-seven".