145522641 has 8 divisors (see below), whose sum is σ = 211669344. Its totient is φ = 88195520.

The previous prime is 145522613. The next prime is 145522673. The reversal of 145522641 is 146225541.

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 145522641 - 2⁹ = 145522129 is a prime.

It is a super-2 number, since 2×145522641² = 42353678087229762, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145522599 and 145522608.

It is not an unprimeable number, because it can be changed into a prime (145512641) 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, 2204856 + ... + 2204921.

It is an arithmetic number, because the mean of its divisors is an integer number (26458668).

Almost surely, 2^145522641 is an apocalyptic number.

145522641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

145522641 is a deficient number, since it is larger than the sum of its proper divisors (66146703).

145522641 is a wasteful number, since it uses less digits than its factorization.

145522641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4409791.

The product of its digits is 9600, while the sum is 30.

The square root of 145522641 is about 12063.2765449525. The cubic root of 145522641 is about 525.9892350826.

The spelling of 145522641 in words is "one hundred forty-five million, five hundred twenty-two thousand, six hundred forty-one".