145199967 has 32 divisors (see below), whose sum is σ = 217313280. Its totient is φ = 85482720.

The previous prime is 145199917. The next prime is 145199981. The reversal of 145199967 is 769991541.

It is not a de Polignac number, because 145199967 - 2⁸ = 145199711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145199917) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 277368 + ... + 277890.

It is an arithmetic number, because the mean of its divisors is an integer number (6791040).

Almost surely, 2^145199967 is an apocalyptic number.

145199967 is a deficient number, since it is larger than the sum of its proper divisors (72113313).

145199967 is a wasteful number, since it uses less digits than its factorization.

145199967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763.

The product of its digits is 612360, while the sum is 51.

The square root of 145199967 is about 12049.8948958072. The cubic root of 145199967 is about 525.6001807313.

The spelling of 145199967 in words is "one hundred forty-five million, one hundred ninety-nine thousand, nine hundred sixty-seven".