145351966 has 4 divisors (see below), whose sum is σ = 218027952. Its totient is φ = 72675982.

The previous prime is 145351949. The next prime is 145351993. The reversal of 145351966 is 669153541.

It is a happy number.

145351966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×145351966² = 42254388040130312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36337990 + ... + 36337993.

It is an arithmetic number, because the mean of its divisors is an integer number (54506988).

Almost surely, 2^145351966 is an apocalyptic number.

145351966 is a deficient number, since it is larger than the sum of its proper divisors (72675986).

145351966 is an equidigital number, since it uses as much as digits as its factorization.

145351966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72675985.

The product of its digits is 97200, while the sum is 40.

The square root of 145351966 is about 12056.2003135316. The cubic root of 145351966 is about 525.7835206280.

The spelling of 145351966 in words is "one hundred forty-five million, three hundred fifty-one thousand, nine hundred sixty-six".