145771629 has 8 divisors (see below), whose sum is σ = 204591840. Its totient is φ = 92066256.

The previous prime is 145771627. The next prime is 145771643. The reversal of 145771629 is 926177541.

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 145771629 - 2¹ = 145771627 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145771621) 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, 1278642 + ... + 1278755.

It is an arithmetic number, because the mean of its divisors is an integer number (25573980).

Almost surely, 2^145771629 is an apocalyptic number.

145771629 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

145771629 is a deficient number, since it is larger than the sum of its proper divisors (58820211).

145771629 is a wasteful number, since it uses less digits than its factorization.

145771629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2557419.

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

The square root of 145771629 is about 12073.5922160722. The cubic root of 145771629 is about 526.2890518542.

The spelling of 145771629 in words is "one hundred forty-five million, seven hundred seventy-one thousand, six hundred twenty-nine".