145501449 has 8 divisors (see below), whose sum is σ = 204212640. Its totient is φ = 91895616.

The previous prime is 145501429. The next prime is 145501459. The reversal of 145501449 is 944105541.

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

It is not a de Polignac number, because 145501449 - 2⁵ = 145501417 is a prime.

It is a super-2 number, since 2×145501449² = 42341343322199202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145501429) 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, 1276272 + ... + 1276385.

It is an arithmetic number, because the mean of its divisors is an integer number (25526580).

Almost surely, 2^145501449 is an apocalyptic number.

145501449 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

145501449 is a deficient number, since it is larger than the sum of its proper divisors (58711191).

145501449 is a wasteful number, since it uses less digits than its factorization.

145501449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552679.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 145501449 is about 12062.3981446477. The cubic root of 145501449 is about 525.9637011292.

The spelling of 145501449 in words is "one hundred forty-five million, five hundred one thousand, four hundred forty-nine".